What is GHSA-cw7q-5cgc-h3h9?

GHSA-cw7q-5cgc-h3h9 is a security advisory published by GitHub Security Advisories with Low severity. Mattermost fail to prompt for explicit approval before adding a team admin to a private channel

Which CVE IDs does GHSA-cw7q-5cgc-h3h9 cover?

GHSA-cw7q-5cgc-h3h9 covers the following CVE IDs: CVE-2025-27715. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cw7q-5cgc-h3h9?

GHSA-cw7q-5cgc-h3h9 has a CVSS v3 base score of 3.3, published by GitHub Security Advisories.

Which products are affected by GHSA-cw7q-5cgc-h3h9?

GHSA-cw7q-5cgc-h3h9 affects 1 product, including: go/github.com/mattermost/mattermost/server/v8:\u003e= 9.11.0, \u003c 9.11.9.

GHSA-cw7q-5cgc-h3h9LowCVSS 3.3

Mattermost fail to prompt for explicit approval before adding a team admin to a private channel

Vendor

GitHub Security Advisories

Published

March 21, 2025

Last Modified

March 21, 2025

🔗 CVE IDs covered (1)

CVE-2025-27715 →

📋 Description

Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.

🎯 Affected products1

go/github.com/mattermost/mattermost/server/v8:>= 9.11.0, < 9.11.9

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2025-27715
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-cw7q-5cgc-h3h9