CVE-2023-5876

5.3 mediumEPSS 0.5%

Medium (5.3) in mattermost mattermost desktop. EPSS 0.5% chance of exploitation in the next 30 days.

Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.

Severity

CVSS 3.1

5.3 medium

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-400
Published: 2023-11-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mattermost:mattermost_desktop

References

https://mattermost.com/security-updates
https://mattermost.com/security-updates

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