# CVE-2025-62190: mattermost-plugin CSRF — Fixed in 1.10.0

🐹

🐹 Go

Not in CISA KEV

MEDIUM severity

# CVE-2025-62190 — mattermost-plugin-calls

MEDIUM [Fix: mattermost/mattermost-plugin-calls@429cfaf](https://github.com/mattermost/mattermost-plugin-calls/commit/429cfaf2a301a369414d1ca18a3364e85901c8d1)

CVE-2025-62190 is a medium-severity (CVSS 4.3) Cross-Site Request Forgery (CSRF) vulnerability in github.com/mattermost/mattermost-plugin-calls. A fix is available for github.com/mattermost/mattermost-plugin-calls — see the affected versions and patch details below.

CSRF Allows Call Initiation and Message Delivery

Also known as[GHSA-gmx5-frv9-9m9f](/vulnerability/GHSA-gmx5-frv9-9m9f)GO-2025-4254

Published

Dec 17, 2025

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 2, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

## Exploitation Status

### No confirmed exploitation observed yet

-   CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-62190.

## EPSS Exploitation Probability

[via FIRST.org ↗](https://www.first.org/epss/)

0.1%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs2th percentile — riskier than 2% of all scored CVEsHighest risk

0.00%0.21%0.41%0.62%0.0%0.1%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from [FIRST.org EPSS](https://www.first.org/epss/).

## How urgent is this, really

## Where this sits among everything scored

## Real-World Exposure

1 pkg affected

🐹`github.com/mattermost/mattermost-plugin-calls`

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 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

## Affected Packages

1 total 1 fixed

Ecosystem

Package

Vulnerable range

Fix

🐹Go

`github.com/mattermost/mattermost-plugin-calls` 

all versions

1.10.0`go get github.com/mattermost/mattermost-plugin-calls@v1.10.0`

## Affected Products

1 product · 3 configurations

Application

`mattermost server`mattermost

≥ 11.0.0 && < 11.0.5

range

## 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-calls, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
    
2.  ### Fix
    
    Update github.com/mattermost/mattermost-plugin-calls to 1.10.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-62190 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.
    

## Frequently Asked Questions

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.

O3 Security · Impact-Aware SCA

### Is CVE-2025-62190 in your dependencies?

Find it across Go, including transitive dependencies.

[Scan my dependencies](/book-demo) [How O3 SCA works](/impact-aware-sca)