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NVD Vulnerability Details :

CVE-2025-8848

Analyzed

Source-security@huntr.dev

Published At-22 Oct, 2025 | 14:15

Updated At-30 Oct, 2025 | 17:34

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	5.4	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Secondary	3.0	4.8	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Type: Primary

Version: 3.1

Base score: 5.4

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Type: Secondary

Version: 3.0

Base score: 4.8

Base severity: MEDIUM

Vector:

CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CPE Matches

librechat>>librechat>>0.7.9

cpe:2.3:a:librechat:librechat:0.7.9:-:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-94	Primary	security@huntr.dev
CWE-79	Primary	nvd@nist.gov

CWE ID: CWE-94

Type: Primary

Source: security@huntr.dev

CWE ID: CWE-79

Type: Primary

Source: nvd@nist.gov

References

Hyperlink	Source	Resource
https://huntr.com/bounties/a05ebc1f-882a-4adc-b178-d3cefa4b730e	security@huntr.dev	Exploit Third Party Advisory

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

Source: security@huntr.dev

Resource:

Exploit

Third Party Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History