CVE-2025-8848

Severity CVSS v4.0:

Pending analysis

Type:

CWE-94 Code Injection

Publication date:

22/10/2025

Last modified:

30/10/2025

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.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.40

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:librechat:librechat:0.7.9:-::::::

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

https://huntr.com/bounties/a05ebc1f-882a-4adc-b178-d3cefa4b730e