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GHSA-qjrx-j8wm-xf83

MEDIUM

GHSA-qjrx-j8wm-xf83 is a medium-severity (CVSS 4) CWE-862 vulnerability in github.com/mattermost/mattermost-plugin-confluence. O3 Security confirms whether GHSA-qjrx-j8wm-xf83 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Mattermost Confluence Plugin has Missing Authorization vulnerability

Also known asCVE-2025-8285GO-2025-3868
Published
Aug 11, 2025
Updated
Sep 24, 2025
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Real-World Exposure

1 pkg affected
🐹github.com/mattermost/mattermost-plugin-confluence

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Mattermost Confluence Plugin versions < 1.5.0 fail to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/mattermost/mattermost-plugin-confluenceall versions1.5.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/mattermost/mattermost-plugin-confluence. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/mattermost/mattermost-plugin-confluence to 1.5.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qjrx-j8wm-xf83 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-qjrx-j8wm-xf83 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-qjrx-j8wm-xf83. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Mattermost Confluence Plugin versions < 1.5.0 fail to check the access of the user to the channel which allows attackers to create channel subscription without proper access to the channel via API call to the create channel subscription endpoint.
O3 Security · Impact-Aware SCA

Is GHSA-qjrx-j8wm-xf83 in your dependencies?

O3 detects GHSA-qjrx-j8wm-xf83 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.