CVE-2025-27933 — Unauthorized Private-to-Public Channel Conversion

CVE-2025-27933

Unauthorized Private-to-Public Channel Conversion PUBLISHED

Description (CNA)

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to fail to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public

Affected (CNA)

Vendor / product	Versions
Mattermost / Mattermost	affected 10.4.0 through 10.4.2; affected 10.3.0 through 10.3.3; affected 9.11.0 through 9.11.8; unaffected 10.5.0; unaffected 10.4.3; unaffected 10.3.4; unaffected 9.11.9

CWE

CWE-863

References

https://mattermost.com/security-updates

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.