CVE-2025-62190: GO-2025-4254 - Mattermost has CSRF vulnerability via Calls Widget page in github.com/mattermost/mattermost-plugin-calls

CVE-2025-62190 · Severity: medium · CVSS 4.3 · Published 2025-12-17

Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 and Mattermost Calls versions <=1.10.0 fail to implement CSRF protection on the Calls widget page which allows an authenticated attacker to initiate calls and inject messages into channels or direct messages via a malicious webpage or crafted link

Technologies: github.com/mattermost/mattermost-plugin-calls (Go), Mattermost Server. Vendors: Go, Mattermost.

Quick answers

Is CVE-2025-62190 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-62190 being exploited in the wild.
How severe is CVE-2025-62190?
Medium severity, with a CVSS score of 4.3, published 17 December 2025.
Which products and versions are affected?
github.com/mattermost/mattermost-plugin-calls (Go) SEMVER:introduced=0,fixed=1.10.0.
Is there a fix for CVE-2025-62190?
Yes. github.com/mattermost/mattermost-plugin-calls (Go): upgrade to 1.10.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-62190?
Check whether you run github.com/mattermost/mattermost-plugin-calls (Go) or Mattermost Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/mattermost/mattermost-plugin-calls (Go): upgrade to 1.10.0 or later
    go get github.com/mattermost/mattermost-plugin-calls@v1.10.0

Affected products

  • github.com/mattermost/mattermost-plugin-calls (Go) SEMVER:introduced=0,fixed=1.10.0
  • Mattermost Server

Identifiers

  • CVE-2025-62190
  • GHSA-gmx5-frv9-9m9f
  • GO-2025-4254

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.