Vulnerability · Published Apr 16, 2025 · Assigned by Mattermost

CVE-2025-24839Unauthorized AI bot activation via Wrangler plugin

Low 3.1

In plain English

A low-severity incorrect authorization 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 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.1Low
Exploit odds (30 days)0.2%top 86.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to prevent Wrangler posts from triggering AI responses. This vulnerability allows users without access to the AI bot to activate it by attaching the activate_ai override property to a post via the Wrangler plugin, provided both the AI and Wrangler plugins are enabled.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Gogithub.com/mattermost/mattermost-server10.4.4+incompatible, 10.5.2+incompatible, 9.11.10+incompatibleGO-2025-3621
Gogithub.com/mattermost/mattermost-server/v5no fix listedGO-2025-3621
Gogithub.com/mattermost/mattermost-server/v6no fix listedGO-2025-3621
Gogithub.com/mattermost/mattermost/server/v88.0.0-20250314142426-c049748b8863GHSA-j639-m367-75cf
Gogithub.com/mattermost/mattermost/server/v810.5.2GHSA-j639-m367-75cf
Gogithub.com/mattermost/mattermost/server/v88.0.0-20250218121836-2b5275d87136GO-2025-3621
Gogithub.com/mattermost/mattermost/server/v810.4.4GHSA-j639-m367-75cf
Gogithub.com/mattermost/mattermost/server/v89.11.10GHSA-j639-m367-75cf

Affected products (as reported)

VendorProductVersions
Mattermost Mattermost 10.5.0 – through 10.5.110.4.0 – through 10.4.39.11.0 – through 9.11.9

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

References