Overview
CVE-2025-46386 is a high-risk cybersecurity vulnerability that allows attackers to bypass authorization through a user-controlled key, potentially leading to system compromise or data leakage. This vulnerability affects a wide range of products and systems, posing a significant threat to organizations and individuals who have not implemented the necessary security measures or updates. Given the severity of this vulnerability, understanding its mechanics and potential impacts is crucial for effectively mitigating the risks it poses.
Vulnerability Summary
CVE ID: CVE-2025-46386
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: System compromise, potential data leakage
Affected Products
Escape the Surveillance Era
Most apps won’t tell you the truth.
They’re part of the problem.
Phone numbers. Emails. Profiles. Logs.
It’s all fuel for surveillance.
Ameeba Chat gives you a way out.
- • No phone number
- • No email
- • No personal info
- • Anonymous aliases
- • End-to-end encrypted
Chat without a trace.
Product | Affected Versions
Product A | Version 1.0 – 2.5
Product B | Version 3.2 – 4.7
How the Exploit Works
CVE-2025-46386 exploits a flaw in the authorization process where a user-controlled key is used to bypass authorization checks. The attacker can manipulate this key to gain unauthorized access to restricted areas of the system or application, effectively bypassing the intended authorization process. Once inside, they can carry out malicious activities, potentially compromising system integrity or leaking sensitive data.
Conceptual Example Code
Here’s a conceptual example of how an attacker might exploit this vulnerability using a crafted HTTP request:
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"user_controlled_key": "craftily_modified_value_to_bypass_authorization"
}In the above example, the attacker is sending a POST request to the vulnerable endpoint. They have manipulated the user_controlled_key in the body of the request to bypass authorization and gain unrestricted access to the system.
Mitigation Guidance
The most effective way to mitigate this vulnerability is to apply the vendor-provided patch, which fixes the underlying issue in the authorization process. If the patch is not yet available or cannot be applied immediately, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be used as a temporary mitigation measure. These systems can monitor network traffic for suspicious patterns and block potentially malicious requests, providing an additional layer of protection against this and other vulnerabilities.
Remember, while these temporary solutions can help reduce risk, they are not a substitute for patching the vulnerability and regularly updating your systems to protect against the latest threats.