CVE-2025-8848 – HTML Injection in Accept-Language Header in danny-avila/librechat

CVE ID : CVE-2025-8848

Published : Oct. 22, 2025, 2:15 p.m. | 27 minutes ago

Description : 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 tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.

Severity: 4.8 | MEDIUM

Visit the link for more details, such as CVSS details, affected products, timeline, and more…