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 <html lang=""> tag of the response. This can lead to potential security risks such as cross-site scripting (XSS) attacks.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| danny-avila | danny-avila/librechat | unspecified – ≤ latest | — |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- LibreChat <= 0.7.9 - HTML Injection via Accept-Language Header http/cves/2025/CVE-2025-8848.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.