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CVE-2025-66450

5.4 · MEDIUM

LibreChat is a ChatGPT clone with additional features.

Published Dec 11, 2025CWE-80EPSS 0.21%

Overview

CVE-2025-66450 is a medium-severity vulnerability. It was published on December 11, 2025 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/danny-avila/LibreChat/commit/6fa94d3eb8f5779363226d10dccf8b01a735744cGitHubgithub.com/danny-avila/LibreChat/security/advisories/GHSA-84vx-vmcf-xgpp

How CyberStrike helps

Frequently asked questions

What is CVE-2025-66450?

CVE-2025-66450 is a medium-severity vulnerability. It was published on December 11, 2025 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-66450?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-66450?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-66450?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-66450 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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