Author: Ameeba

Overview

The vulnerability identified as CVE-2025-7657 is a high severity issue found in Google Chrome’s WebRTC component. This flaw has been reported to affect previous versions of Google Chrome prior to 138.0.7204.157. It is a use after free vulnerability that could potentially allow a remote attacker to exploit heap corruption via a maliciously crafted HTML page. This vulnerability is particularly concerning due to its high severity rating of 8.8 on the Common Vulnerability Scoring System (CVSS) scale and its potential to possibly compromise system integrity or leak sensitive data.
The growing reliance on web browsers for day-to-day tasks, both personal and professional, makes a vulnerability of this magnitude a significant concern. Google Chrome, being one of the most popular web browsers globally, potentially exposes millions of users to this security flaw if left unpatched.

Vulnerability Summary

CVE ID: CVE-2025-7657
Severity: High (CVSS Score: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Google Chrome | Prior to 138.0.7204.157

How the Exploit Works

The exploit takes advantage of a use after free vulnerability in Google Chrome’s WebRTC component. Specifically, it manipulates the handling of memory in the component, causing heap corruption. An attacker can craft a malicious HTML page, which, when loaded by a user in the vulnerable browser, triggers the vulnerability. This could potentially allow the attacker to execute arbitrary code in the context of the browser, leading to system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This is a hypothetical scenario where a user is tricked into visiting a malicious webpage, which contains the malicious payload.

GET /malicious_page.html HTTP/1.1
Host: attacker.example.com
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5

The `malicious_page.html` would contain a script that exploits the vulnerability in Google Chrome’s WebRTC component, potentially leading to heap corruption and further exploitation. Users are strongly advised to update their Google Chrome browser to the latest version to mitigate this security risk.

Overview

CVE-2025-50067 is a severe vulnerability identified in Oracle Application Express, particularly in the component: Strategic Planner Starter App. The affected versions are 24.2.4 and 24.2.5. The flaw is of significant concern due to its ease of exploitation and the potential for system compromise or data leakage. The vulnerability allows a low privileged attacker, with network access via HTTP, to compromise Oracle Application Express. The criticality of this vulnerability lies not only in its potential to destabilize Oracle Application Express, but also its potential to severely impact additional products.

Vulnerability Summary

CVE ID: CVE-2025-50067
Severity: Critical (CVSS Score: 9.0)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Successful exploitation can result in takeover of Oracle Application Express and potential system compromise or data leakage.

Affected Products

Product | Affected Versions

Oracle Application Express | 24.2.4
Oracle Application Express | 24.2.5

How the Exploit Works

The vulnerability, CVE-2025-50067, exploits a flaw within the Strategic Planner Starter App component of Oracle Application Express. The attacker, with low-level privileges, can gain network access via HTTP to compromise the application. The nature of this vulnerability requires human interaction from a person other than the attacker. Once the exploit is successful, it can lead to a significant scope change, impacting additional products and potentially resulting in system takeover.

Conceptual Example Code

The exploit might be triggered with a malicious HTTP request similar to this:

POST /StrategicPlannerStarterApp/compromised_endpoint HTTP/1.1
Host: target.oracleApex.com
Content-Type: application/json
{ "malicious_payload": "payload that exploits the vulnerability" }

This is a conceptual example and the actual exploit may involve more complex steps or different methods depending on the specific context.

Recommended Mitigation

Oracle has already addressed this vulnerability, and it is highly recommended to apply the vendor patch as soon as possible. If immediate patching is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. However, these should not be considered long-term solutions as they may not fully protect the system from all possible exploits of this vulnerability.

Overview

This blog post will take an in-depth look at the critical vulnerability identified as CVE-2025-7656. This security flaw has significant implications for users of Google Chrome, one of the most widely used internet browsers globally. The vulnerability pertains to an integer overflow in V8, a fundamental part of Google Chrome that executes JavaScript. It allows a remote attacker to potentially exploit heap corruption via a specially crafted HTML page. The severity of this issue is high due to its potential to lead to system compromise or data leakage, highlighting the urgency for users to understand and address it.

Vulnerability Summary

CVE ID: CVE-2025-7656
Severity: High – CVSS Score 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise or data leakage upon successful exploit

Affected Products

Product | Affected Versions

Google Chrome | Prior to 138.0.7204.157

How the Exploit Works

This vulnerability stems from an integer overflow in Google Chrome’s V8 engine. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that is outside of the range that can be represented with a given number of bits. In this case, the overflow results in heap corruption, a type of vulnerability that could allow an attacker to manipulate and control data in the application’s memory.
The threat actor can exploit this vulnerability by creating a malicious HTML page that triggers the integer overflow. When a victim visits this page using a vulnerable version of Google Chrome, the attacker could potentially execute arbitrary code, leading to system compromise or data leakage.

Conceptual Example Code

<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
// Crafted JavaScript code that triggers integer overflow in V8
var arr = new Array(1);
arr.length = Math.pow(2, 31); // This will cause integer overflow in V8
arr.push('trigger heap corruption'); // Heap corruption due to overflow
</script>
</body>
</html>

This conceptual example illustrates a simple JavaScript code that could cause an integer overflow in the V8 engine, leading to heap corruption. Note that actual exploitation would involve more complex manipulations of the memory layout to achieve arbitrary code execution.

Mitigation Guidance

To protect against this vulnerability, users should immediately update their Google Chrome browser to version 138.0.7204.157 or later, which contains a patch for this issue. For those who cannot immediately apply the patch, using a web application firewall (WAF) or intrusion detection system (IDS) can serve as temporary mitigation, as these systems could be configured to detect and block attempts to exploit this vulnerability. Regularly updating and patching software is a critical part of maintaining cybersecurity and preventing potential attacks.

Overview

Today, we’ll be discussing a crucial vulnerability, CVE-2025-6558, notable for its potential to compromise systems and leak data. This vulnerability affects Google Chrome versions prior to 138.0.7204.157, and is specifically linked to insufficient validation of untrusted input in ANGLE and GPU. This vulnerability is particularly critical due to its high severity status and its widespread reach, given the global usage of Google Chrome. This could potentially allow a remote attacker to perform a sandbox escape, thereby breaching the security protocols of the system via a carefully crafted HTML page.

Vulnerability Summary

CVE ID: CVE-2025-6558
Severity: High (CVSS score of 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Google Chrome | Versions prior to 138.0.7204.157

How the Exploit Works

The exploit leverages insufficient validation of untrusted input within ANGLE and GPU in Google Chrome. Through this, it crafts an HTML page that, when loaded, can escape the confines of the browser’s sandbox. This action potentially allows the attacker to execute arbitrary code on the victim’s machine, leading to system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This could be a sample HTTP request that includes a malicious payload in the form of a crafted HTML page.

GET /malicious.html HTTP/1.1
Host: attacker.example.com
Content-Type: text/html
<html>
<body>
<script>
// Malicious code here that exploits the vulnerability
</script>
</body>
</html>

In this example, the malicious.html is a crafted HTML page that contains a script exploiting the vulnerability in Google Chrome. When a user visits this page, the script runs and potentially allows the attacker to escape the browser’s sandbox and gain unauthorized access to the victim’s system.

Mitigation and Patch Information

Users are advised to apply the vendor patch as soon as possible to mitigate the risks associated with this vulnerability. This can be done by updating Google Chrome to version 138.0.7204.157 or later. In the meantime, the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. It’s also important to remain vigilant when visiting unknown URLs, particularly those that prompt for the execution of JavaScript.

Overview

The cybersecurity landscape is constantly evolving, with new threats emerging each day. One such threat that has recently been identified is the CVE-2025-53823 vulnerability, which specifically affects WeGIA, an open-source web manager. This blog post aims to provide an in-depth analysis of this vulnerability, its potential impact, and the mitigation methods that can be applied. The vulnerability is particularly significant as it impacts web applications that cater to Portuguese-speaking users and charitable organizations, potentially exposing sensitive data and compromising system integrity.

Vulnerability Summary

CVE ID: CVE-2025-53823
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

WeGIA | Versions prior to 3.4.5

How the Exploit Works

The vulnerability lies in the endpoint `/WeGIA/html/socio/sistema/processa_deletar_socio.php`, specifically within the `id_socio` parameter. This flaw allows the execution of arbitrary SQL commands, thus enabling an attacker to manipulate the database, compromise the confidentiality, integrity, and availability of stored data. This type of attack, known as SQL Injection, is one of the oldest and most potent web application vulnerabilities, allowing an attacker to interact directly with the website’s database.

Conceptual Example Code

Here’s a conceptual example of how an attacker might exploit this vulnerability using a malicious SQL command:

POST /WeGIA/html/socio/sistema/processa_deletar_socio.php HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
id_socio=1; DROP TABLE users;

In this example, the string `1; DROP TABLE users;` is injected into the `id_socio` parameter. If the parameter is not properly sanitized, the SQL interpreter will execute two SQL commands: the first one is the intended operation (with id_socio = 1), and the second one (DROP TABLE users) is the injected malicious operation which will delete the users table from the database.

Mitigation

The immediate mitigation for this vulnerability is to apply the vendor-provided patch, upgrading to WeGIA version 3.4.5. If, for any reason, immediate patching is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. They should be configured to detect and block suspicious and malicious SQL commands.
Nevertheless, the best long-term strategy would be to adopt secure coding practices that prevent SQL injection vulnerabilities, such as using parameterized queries or prepared statements, and always validating and sanitizing user input.

Overview

In the cybersecurity landscape, a newly discovered vulnerability, identified as CVE-2025-41238, is putting organizations that use VMware ESXi, Workstation, and Fusion at risk. This vulnerability, a heap-overflow issue in the PVSCSI (Paravirtualized SCSI) controller, allows an attacker with local administrative privileges to execute code as the virtual machine’s VMX process running on the host. This type of vulnerability is particularly concerning because of the potential for system compromise or data leakage, posing significant threats to enterprise security.

Vulnerability Summary

CVE ID: CVE-2025-41238
Severity: Critical (9.3 CVSS Severity Score)
Attack Vector: Local
Privileges Required: High (Administrative Privileges)
User Interaction: None
Impact: System Compromise and Potential Data Leakage

Affected Products

Product | Affected Versions

VMware ESXi | All versions prior to patch
VMware Workstation | All versions prior to patch
VMware Fusion | All versions prior to patch

How the Exploit Works

The vulnerability lies in the PVSCSI controller, an important component of VMware software. Specifically, it is a heap-overflow vulnerability that leads to an out-of-bounds write. An attacker with local administrative privileges on a virtual machine can exploit this vulnerability to execute code as the virtual machine’s VMX process running on the host.
On VMware ESXi, the exploitation is contained within the VMX sandbox and only exploitable with configurations that are unsupported. However, on Workstation and Fusion, this vulnerability may lead to code execution on the machine where Workstation or Fusion is installed, hence the high severity score.

Conceptual Example Code

While no specific code has been released for this exploit, a potential attacker might use a specially crafted payload to trigger the heap-overflow. Conceptually, this might look like:

$ echo "malicious payload" > /dev/vmware/pvscsi
$ ./exploit $(cat /dev/vmware/pvscsi)

Note that this is a conceptual example and not real exploit code.

Mitigation Guidance

The best way to mitigate this vulnerability is to apply vendor patches as soon as they become available. VMware has already released patches for all affected versions of their software, and organizations are strongly advised to apply these updates as quickly as possible.
In the interim, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. These systems can potentially detect and block attempts to exploit this vulnerability.
Finally, organizations should reconsider the necessity of allowing local administrative privileges on their virtual machines. Restricting such privileges can greatly reduce the attack surface and prevent many types of exploits, including this one.

Overview

The cybersecurity landscape is constantly evolving, with new vulnerabilities emerging regularly. One such vulnerability, designated CVE-2025-41237, affects popular VMware products, including ESXi, Workstation, and Fusion. This vulnerability is particularly concerning due to its high severity rating and the possibility of system compromise or data leakage. As such, it is critical for system administrators and cybersecurity professionals to understand this vulnerability, its potential impacts, and the necessary steps for mitigation.
CVE-2025-41237 exploits an integer-underflow in the Virtual Machine Communication Interface (VMCI) of the affected VMware products. By exploiting this vulnerability, an attacker with local administrative privileges on a virtual machine can execute code on the host machine, potentially leading to severe consequences such as unauthorized data access or system disruption.

Vulnerability Summary

CVE ID: CVE-2025-41237
Severity: Critical (CVSS score 9.3)
Attack Vector: Local
Privileges Required: Administrative
User Interaction: None
Impact: System Compromise and Data Leakage

Affected Products

Product | Affected Versions

VMware ESXi | All versions prior to the latest patch
VMware Workstation | All versions prior to the latest patch
VMware Fusion | All versions prior to the latest patch

How the Exploit Works

The vulnerability arises from an integer-underflow in the VMCI of the affected VMware products. An integer-underflow is a condition that can occur in a computer program when an integer is decreased below its defined range. This leads to an out-of-bounds write, thereby allowing malicious actors to manipulate data and control program execution.
In the case of CVE-2025-41237, a malicious actor with local administrative privileges on a virtual machine can exploit this vulnerability to execute code as the VMX process running on the host. While on ESXi, the exploitation is contained within the VMX sandbox, on Workstation and Fusion, it may lead to code execution on the machine where Workstation or Fusion is installed.

Conceptual Example Code

While a precise exploit code for CVE-2025-41237 is not publicly available considering the critical nature of the vulnerability, a conceptual example could look something like this:

# Pseudo code demonstrating the exploit
def exploit():
# Underflow the integer
int_underflow = 0x100000000 - 1
# Craft malicious payload
payload = struct.pack('<I', int_underflow) * 1024
# Write to VMCI
vmci.write(payload)

In this conceptual example, the attacker crafts a payload that would cause an integer underflow, then writes this payload to the VMCI. This would result in out-of-bounds write, potentially leading to code execution on the host machine.

Overview

An alarming vulnerability, CVE-2025-41236, has been discovered in VMware’s ESXi, Workstation, and Fusion products. This vulnerability exists within the VMXNET3 virtual network adapter and poses a significant threat to virtual machines running these VMware products. The vulnerability is of particular concern because it allows a malicious actor with local administrative privileges to potentially execute code on the host system. Understanding and mitigating this issue is crucial for maintaining the security and integrity of virtual environments.

Vulnerability Summary

–
CVE ID
: CVE-2025-41236
–
Severity
: Critical (9.3 CVSS Severity Score)
–
Attack Vector
: Local
–
Privileges Required
: High (Local Administrative Privileges)
–
User Interaction
: None
–
Impact
: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

VMware ESXi | All versions with VMXNET3
VMware Workstation | All versions with VMXNET3
VMware Fusion | All versions with VMXNET3

How the Exploit Works

This exploit utilizes an integer-overflow vulnerability in the VMXNET3 virtual network adapter. An attacker with local administrative privileges on the virtual machine can manipulate specific parameters or data inputs to trigger an overflow condition. This overflow can cause the system to behave unpredictably, potentially allowing code execution on the host.

Conceptual Example Code

Given that this vulnerability requires local access, an attacker might use a shell command similar to the following to exploit the condition:

$ echo -ne "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" > /dev/vmxnet3
$ echo -ne "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" > /dev/vmxnet3

This simplified example is just to illustrate the concept of an integer overflow. The actual exploit would likely involve more complex manipulation of the network adapter’s parameters.

Mitigation and Remediation

The most effective solution to address this vulnerability is to apply the vendor-supplied patch. VMware has released patches that fix this issue in the affected products. If it is not immediately possible to apply these patches, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, these should not be considered long-term solutions, as they don’t address the root cause of the vulnerability.
Please ensure to follow your organization’s patch management policy and apply the patches immediately to mitigate the risk associated with CVE-2025-41236.

Overview

A serious Cross-Site Scripting (XSS) vulnerability, identified as CVE-2025-53835, has been discovered in the XWiki Rendering system. This vulnerability affects versions 5.4.5 to prior to version 14.10. The vulnerability leverages the `xdom+xml/current` syntax, which allows the insertion of arbitrary HTML content, including JavaScript, leading to potential XSS attacks. The users most affected are those with editing rights, including the ability to modify their user profile. The severity of this vulnerability underscores the need for immediate attention and remediation, as potential exploitation could lead to significant system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-53835
Severity: Critical (CVSS: 9.0)
Attack Vector: Web-based (HTTP/HTTPS)
Privileges Required: Low (User interaction)
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

XWiki Rendering | 5.4.5 to 14.9

How the Exploit Works

The CVE-2025-53835 vulnerability stems from the ability to create raw blocks through the `xdom+xml/current` syntax in the XWiki Rendering system. This syntax allows the introduction of arbitrary HTML content, including JavaScript. By inserting malicious scripts, an attacker could perform an XSS attack, leading to unauthorized access, data leakage, or even system compromise.

Conceptual Example Code

Below is a conceptual example demonstrating how this vulnerability might be exploited. This example leverages a malicious script embedded within a user profile edit request.

POST /user/profile/edit HTTP/1.1
Host: target.example.com
Content-Type: text/html
{ "<script>malicious_code_here</script>" }

When a user views the edited profile, the malicious script is executed, potentially leading to unauthorized access or data leakage.

Mitigation Guidance

The recommended mitigation for CVE-2025-53835 is to upgrade the XWiki Rendering system to version 14.10 or later, which removes the dependency on the `xdom+xml/current` syntax from the XHTML syntax. In the absence of an immediate upgrade, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. Furthermore, the `xdom+xml` syntax, which remains vulnerable, should not be installed or used on a regular wiki due to the associated risks.

Overview

CVE-2025-7360 is a critical vulnerability that resides in the HT Contact Form Widget For Elementor Page Builder & Gutenberg Blocks & Form Builder plugin for WordPress. This vulnerability, if exploited, allows an unauthenticated attacker to move arbitrary files on the server, potentially leading to remote code execution. A successful exploit can result in a full system compromise or data leakage, impacting the confidentiality, integrity, and availability of the affected system. This vulnerability underscores the importance of proper file path validation in web applications and the potential consequences of not securing all endpoints.

Vulnerability Summary

CVE ID: CVE-2025-7360
Severity: Critical (CVSS 9.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

HT Contact Form Widget For Elementor Page Builder & Gutenberg Blocks & Form Builder | <= 2.2.1 How the Exploit Works

The vulnerability exists in the handle_files_upload() function of the HT Contact Form Widget For WordPress. This function does not adequately validate file paths, enabling an attacker to move arbitrary files. If an attacker moves a sensitive file like “wp-config.php”, they can manipulate the configuration of the WordPress site, potentially leading to remote code execution.

Conceptual Example Code

Here is a conceptual example of how an unauthenticated attacker might exploit this vulnerability:

POST /wp-content/plugins/ht-contactform/upload.php HTTP/1.1
Host: vulnerable-wordpress-site.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="wp-config.php"
Content-Type: application/x-php
<?php
// malicious payload here
?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--

In this example, the attacker is attempting to upload a malicious “wp-config.php” file to the server, which if successful, could allow them to execute arbitrary code.

Mitigation

To mitigate this vulnerability, users should immediately apply the vendor-provided patch. If a patch cannot be applied immediately, a web application firewall (WAF) or intrusion detection system (IDS) can be used as a temporary mitigation measure to block attempts to exploit this vulnerability. Additionally, configuring the server to limit the file types that can be moved or uploaded can further reduce the risk.