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Description

Mattermost Desktop App versions <= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.

PUBLISHED Reserved 2025-09-11 | Published 2025-10-13 | Updated 2025-10-14 | Assigner Mattermost




LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Problem types

CWE-1287: Improper Validation of Specified Type of Input

Product status

Default status
unaffected

Any version
affected

5.13.1
unaffected

Credits

Doyensec finder

References

mattermost.com/security-updates

cve.org (CVE-2025-58084)

nvd.nist.gov (CVE-2025-58084)

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