What is GHSA-42m6-5vm7-fjv2?

GHSA-42m6-5vm7-fjv2 is a security advisory published by GitHub Security Advisories with Low severity. Mattermost Confluence Plugin has Missing Authorization vulnerability

Which CVE IDs does GHSA-42m6-5vm7-fjv2 cover?

GHSA-42m6-5vm7-fjv2 covers the following CVE IDs: CVE-2025-53857. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-42m6-5vm7-fjv2?

GHSA-42m6-5vm7-fjv2 has a CVSS v3 base score of 3.7, published by GitHub Security Advisories.

Which products are affected by GHSA-42m6-5vm7-fjv2?

GHSA-42m6-5vm7-fjv2 affects 1 product, including: go/github.com/mattermost/mattermost-plugin-confluence:\u003c 1.5.0.

GHSA-42m6-5vm7-fjv2LowCVSS 3.7

Mattermost Confluence Plugin has Missing Authorization vulnerability

Vendor

GitHub Security Advisories

Published

August 11, 2025

Last Modified

August 11, 2025

🔗 CVE IDs covered (1)

CVE-2025-53857 →

📋 Description

Mattermost Confluence Plugin versions < 1.5.0 fail to check user access to the channel, allowing attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint.

🎯 Affected products1

go/github.com/mattermost/mattermost-plugin-confluence:< 1.5.0

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2025-53857
https://mattermost.com/security-updates
https://github.com/advisories/GHSA-42m6-5vm7-fjv2