GHSA-h356-3mfw-x368

ghsaUSosv

Mattermost Fails to Verify User's Permissions When Accessing Groups

view advisory published 2025-05-15Licence: CC-BY-4.0

Mattermost versions 10.5.x <= 10.5.2, 9.11.x <= 9.11.11 failed to properly verify a user's permissions when accessing groups, which allows an attacker to view group information via an API request.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2025-2527US	—OT elevated	0.31% (24th)	—	2025-05-15
Mattermost versions 10.5.x <= 10.5.2, 9.11.x <= 9.11.11 failed to properly verify a user's permissions when accessing groups, which allows an attacker to view group information via…

references

External citations — patches, advisories, analysis.

https://github.com/mattermost/mattermostPACKAGE
https://mattermost.com/security-updatesWEB
https://nvd.nist.gov/vuln/detail/CVE-2025-2527ADVISORY

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