Vulnerability · Published Apr 16, 2025 · Assigned by Mattermost
CVE-2025-31363Data exfiltration via AI plugin Jira tool
Low 3.0
In plain English
A low-severity security flaw in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)3.0Low
Exploit odds (30 days)0.3%top 78.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 10.4.3+incompatible, 10.5.1+incompatible, 9.11.10+incompatible | GO-2025-3622 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2025-3622 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2025-3622 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250218121836-2b5275d87136 | GHSA-9h6j-4ffx-cm84 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.5.1 | GHSA-9h6j-4ffx-cm84 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250218121836-2b5275d87136 | GO-2025-3622 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.4.3 | GHSA-9h6j-4ffx-cm84 |
| Go | github.com/mattermost/mattermost/server/v8 | 9.11.10 | GHSA-9h6j-4ffx-cm84 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 10.4.0 – through 10.4.210.5.09.11.0 – through 9.11.9 |
Weakness: CWE-1426 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:N