CVE-2025-13321

ℹ️ low

Summary

Mattermost Desktop App versions <6.0.0 fail to sanitize sensitive information from Mattermost logs and clear data on server deletion which allows an attacker with access to the users system to gain access to potentially sensitive information via reading the application logs.

CVSS Score

3.3

Low

EPSS Score

0.0

Exploit Probability

Published Date

2025-12-17

First Seen: 2026-01-05

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 2.8% of all 328,009 vulnerabilities in our database.

#318,817

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Dec 17, 2025

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

🏆 Discovered By

Doyensec

SSVC data provided by CISA

Last Modified 2025-12-18

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-532

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
mattermost	mattermost_desktop	Affected	< 6.0.0

🔗 References 1

https://mattermost.com/security-updates

Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-6517	🔶 medium	6.3	0.2	Mattermost Desktop App versions <=6.1 5.5.13.0 fail to restrict the allow list of domains to which NTLM credentials were...	2026-06-15
CVE-2026-8683	🔶 medium	6.5	0.2	Mattermost Desktop App versions <=6.1 5.5.13.0 fail to account for attempting to open extremely long URLs in the Matterm...	2026-06-15
CVE-2026-3471	🔶 medium	6.5	0.0	Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent an invalid URL from loading in a pop-up window in t...	2026-05-18
CVE-2026-4643	ℹ️ low	3.5	0.0	Mattermost Desktop App versions <=6.1 6.0.1 5.4.13.0 fail to prevent server-rendered content from closing an underlying ...	2026-05-18
CVE-2026-1628	🔶 medium	4.6	0.0	Mattermost Desktop App versions <=5.13.3 fail to attach listeners restricting navigation to external sites within the Ma...	2026-03-02
CVE-2026-1046	⚠️ high	7.6	0.0	Mattermost Desktop App versions <=6.0 6.2.0 5.2.13.0 fail to validate help links which allows a malicious Mattermost ser...	2026-02-16

These CVEs affect the same products