CVE-2025-31363

Published Apr 16, 2025

Last updated 2 months ago

Overview

Description
Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.9 fail to restrict domains the LLM can request to contact upstream which allows an authenticated user to exfiltrate data from an arbitrary server accessible to the victim via performing a prompt injection in the AI plugin's Jira tool.
Source
responsibledisclosure@mattermost.com
NVD status
Awaiting Analysis

Risk scores

CVSS 3.1

Type
Secondary
Base score
3
Impact score
1.4
Exploitability score
1.3
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N
Severity
LOW

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.