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.
Published: 2025-10-22
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 30 Oct 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 30 Oct 2025 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
CPEs cpe:2.3:a:librechat:librechat:0.7.9:-:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

Thu, 23 Oct 2025 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Librechat
Librechat librechat
Vendors & Products Librechat
Librechat librechat

Wed, 22 Oct 2025 14:00:00 +0000

Type Values Removed Values Added
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.
Title HTML Injection in Accept-Language Header in danny-avila/librechat
Weaknesses CWE-94
References
Metrics cvssV3_0

{'score': 4.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}

Subscriptions

Librechat Librechat
cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2025-10-30T18:22:51.121Z

Reserved: 2025-08-10T18:16:29.790Z

Link: CVE-2025-8848

cve-icon Vulnrichment

Updated: 2025-10-30T18:22:46.780Z

cve-icon NVD

Status : Analyzed

Published: 2025-10-22T14:15:52.393

Modified: 2025-10-30T17:34:52.680

Link: CVE-2025-8848

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T10:04:55Z

Weaknesses