CVE-2025-27933

Description

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

Reserved 2025-03-20 | Published 2025-03-21 | Updated 2025-03-21 | Assigner Mattermost

Problem types

CWE-863: Incorrect Authorization

Product status

Default status
unaffected

10.4.0
affected

10.3.0
affected

9.11.0
affected

10.5.0
unaffected

10.4.3
unaffected

10.3.4
unaffected

9.11.9
unaffected

Credits

mrhashimamin finder

References

mattermost.com/security-updates

cve.org (CVE-2025-27933)

nvd.nist.gov (CVE-2025-27933)

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