CVE-2025-66450

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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/danny-avila/LibreChat/commit/6fa94d3eb8f5779363226d10dccf8b01a735744c	Patch
https://github.com/danny-avila/LibreChat/security/advisories/GHSA-84vx-vmcf-xgpp	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:librechat:librechat:*:*:*:*:*:*:*:*

History

07 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) LibreChat es un clon de ChatGPT con características adicionales. En las versiones 0.8.0 e inferiores, cuando un usuario publica una pregunta, el parámetro iconURL de la solicitud POST puede ser modificado por un atacante. El código malicioso se almacena entonces en el chat, que luego puede ser compartido con otros usuarios. Al compartir chats con un 'rastreador' potencialmente malicioso, los recursos cargados pueden provocar la pérdida de privacidad para los usuarios que ven el enlace del chat que se les envía. Este problema está solucionado en la versión 0.8.1.

Information

Published : 2025-12-11 22:15

Updated : 2026-10-07 20:10

NVD link : CVE-2025-66450

Mitre link : CVE-2025-66450

CVE.ORG link : CVE-2025-66450

JSON object : View

Products Affected

librechat

librechat

CWE

CWE-80

Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

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