Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2025-66450

LibreChat JSON Injection in Chat POST Allows Remote Resource Inclusion and PXSS via Image Upload
Back to all
CVE

CVE-2025-66450

LibreChat JSON Injection in Chat POST Allows Remote Resource Inclusion and PXSS via Image Upload

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.6
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66450.json, https://github.com/danny-avila/LibreChat/commit/6fa94d3eb8f5779363226d10dccf8b01a735744c, https://github.com/danny-avila/LibreChat/security/advisories/GHSA-84vx-vmcf-xgpp, https://nvd.nist.gov/vuln/detail/CVE-2025-66450

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00035%
EPSS Percentile
0.0993%
Introduced Version
0
Fix Available
b288d81f5a4625403bc880e93059d90d9aa51fe3

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading