PT-2025-4189 · Mattermost · Mattermost Mobile Apps

C0Rydoras · CVE-2025-21083 · Published 2025-01-15 · Updated 2025-01-15

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Mattermost Mobile Apps versions <=2.22.0

Description The issue arises from the failure to properly validate post properties, allowing a malicious authenticated user to cause a crash via a malicious post. This can be exploited by an authenticated user, indicating a need for proper access controls and validation mechanisms.

Recommendations For Mattermost Mobile Apps versions <=2.22.0, update to a version greater than 2.22.0 to resolve the issue. As a temporary workaround, consider restricting access to post properties to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-1287

Related Identifiers

CVE-2025-21083

Affected Products

Mattermost Mobile Apps

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21083.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-21083 · Security Note
• https://osv.dev/vulnerability/CVE-2025-21083 · Vendor Advisory
• https://mattermost.com/security-updates · Vendor Advisory
• https://t.me/cvedetector/15489 · Telegram Post
• https://twitter.com/CVEnew/status/1879657487994933434 · Twitter Post