CVE-2025-8848mediumCWE-94

CVE-2025-8848: medium-severity vulnerability in danny-avila/librechat

HTML Injection in Accept-Language Header in danny-avila/librechat

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28Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 4.8epss 0.5%
A vulnerability in danny-avila/librechat version 0.7.9 allows for HTML injection via the Accept-Language header. When a logged-in user sends an HTTP GET request with a crafted Accept-Language header, arbitrary HTML can be injected into the <html lang=""> tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Affected products
danny-avila · danny-avila/librechat
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