Overview
CVE-2025-22636 is a high-severity vulnerability that affects the VR-Frases software. It’s an instance of a Cross-site Scripting (XSS) vulnerability, a common issue that allows attackers to inject malicious scripts into web applications viewed by users. This vulnerability can lead to a potential system compromise or data leakage, posing a significant security threat to VR-Frases users. In this post, we will dive deep into the details of this vulnerability, how it could be exploited, and the measures you can take to mitigate the risk.
Vulnerability Summary
CVE ID: CVE-2025-22636
Severity: High (CVSS 8.2)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise or data leakage
Affected Products
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Product | Affected Versions
Vicente Ruiz Gálvez VR-Frases | Up to and including 3.0.1
How the Exploit Works
The underlying issue of this vulnerability is the improper neutralization of input during the generation of web pages, also known as a ‘Cross-Site Scripting’ vulnerability. In simpler terms, the VR-Frases software fails to sanitize user input properly. This oversight allows an attacker to include malicious scripts in their input, which are then executed when the web page is loaded. Because the scripts run in the context of the victim’s session, they can access sensitive data and potentially compromise the system.
Conceptual Example Code
The following is a conceptual example illustrating how an attacker might exploit this vulnerability. In this scenario, an attacker sends a specially crafted HTTP request containing malicious JavaScript code. Upon loading the page, the victim’s browser executes the script.
GET /vr-frases/search?q=<script>malicious_code_here</script> HTTP/1.1
Host: target.example.comMitigation and Prevention
To mitigate this vulnerability, users of VR-Frases should apply the patch provided by the vendor as soon as possible. This patch fixes the input sanitization issue and prevents the execution of malicious scripts.
In cases where immediate patching isn’t feasible, a web application firewall (WAF) or intrusion detection system (IDS) can provide temporary protection. These systems can be configured to detect and block attempts to exploit this vulnerability. However, these are only stopgap measures and cannot replace the need for patching.
Remember, staying updated on the latest patches and security advisories is one of the most effective ways of maintaining your cybersecurity. In a dynamic and evolving landscape, being proactive about security is critical.