CVE-2025-12756

Description

Mattermost fails to validate user permissions when deleting comments in Boards in github.com/mattermost/mattermost. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: .

How to fix CVE-2025-12756

No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.

• —no fix listed
• —no fix listed
• —no fix listed
• —no fix listed
• —no fix listed
• —no fix listed
• —no fix listed

Is CVE-2025-12756 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (7)

• from 0
• >= 10.11.0, <= 10.11.4
• from 0
• from 0
• from 0
• from 0
• from 0, <= 8.0.0-20251013062617-7977e7e6dae3

CVSS scores

References (4)

• ADVISORYgithub.com/advisories/GHSA-p6gj-jc38-x2m7
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-12756
• PATCHgithub.com/mattermost/mattermost
• WEBmattermost.com/security-updates