CVE-2025-8848: 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…

PriorityP432medium5.4CVSS 3.1

AVNACLPRLUIRSCCLILAN

EXPLOIT

EPSS

0.42%

33.9th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
danny-avila	danny-avila_librechat	unspecified – latest	—
librechat	librechat	—	—

CVSS provenance

nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

nvdv3.04.8MEDIUMCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

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