CVE-2025-20036

MEDIUM

Published Jan 15, 2025 Modified Sep 25, 2025 CWE-1287

Description

Mattermost Mobile Apps versions <=2.22.0 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post.

Is your site exposed to CVE-2025-20036?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-1287 CWE-1287

Affected Products

Vendor	Product	Versions
mattermost	mattermost_mobile	< 2.23.0

References

Advisories & Patches

https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2025-20036? +

Mattermost Mobile Apps versions <=2.22.0 fail to properly validate post props which allows a malicious authenticated user to cause a crash via a malicious post. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-20036? +

CVE-2025-20036 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-20036? +

CVE-2025-20036 affects products from mattermost, specifically: mattermost_mobile. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-20036? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-80051

github.com/graphql-go/graphql (GraphQL for Go) through 0.8.1 does not validate that a scalar variable value matches its declared type. The built-in …

CVE-2025-9042

A security issue exists due to improper handling of CIP Class 32’s request when a module is inhibited on the …

CVE-2025-9041

A security issue exists due to improper handling of CIP Class 32’s request when a module is inhibited on the …

CVE-2026-102714

`_nx_icmpv6_validate_options()` scans the option area with `while (length > 2)` (`common/src/nx_icmpv6_validate_options.c:79`). An area whose size leaves a one- or two-byte …

CVE-2025-61672

Synapse is an open source Matrix homeserver implementation. Lack of validation for device keys in Synapse before 1.138.3 and in …

CVE-2026-82741

Improper Validation of Specified Type of Input vulnerability in ash-project ash lets an attacker confuse the stored type tag of …