What is CVE-2025-20072?

CVE-2025-20072 is a medium-severity vulnerability in Mattermost, classified under Incorrect Type Conversion or Cast. CVSS score: 6.5/10. Published 2025-01-16.

How severe is CVE-2025-20072?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-20072 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Mattermost

CVE-2025-20072

Mattermost Mobile versions <= 2.22.0 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the mobile via crafted malicious input.

EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mattermost — versions 0, 2.23.0
Mattermost Mattermost_mobile

Weakness classification (CWE)

CWE-704 — Incorrect Type Conversion or Cast

Public proof-of-concept exploits

c0rydoras/cves

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20072?: CVE-2025-20072 is a medium-severity vulnerability in Mattermost, classified under Incorrect Type Conversion or Cast. CVSS score: 6.5/10. Published 2025-01-16.
How severe is CVE-2025-20072?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-20072 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.