cbcvebase.
CVE-2025-11794
published 2025-11-14

CVE-2025-11794: Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to sanitize user data which allows system administrators to access password…

PriorityP428medium4.9CVSS 3.1
AVNACLPRHUINSUCHINAN
EPSS
0.27%
19.4th percentile
Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to sanitize user data which allows system administrators to access password hashes and MFA secrets via the POST /api/v4/users/{user_id}/email/verify/member endpoint

Affected

13 ranges
VendorProductVersion rangeFixed in
github.commattermost_mattermost-server>= 10.11.0 < 10.11.410.11.4
github.commattermost_mattermost-server>= 10.11.0+incompatible < 10.11.4+incompatible10.11.4+incompatible
github.commattermost_mattermost-server>= 10.12.0 < 10.12.110.12.1
github.commattermost_mattermost-server>= 10.12.0+incompatible < 10.12.1+incompatible10.12.1+incompatible
github.commattermost_mattermost-server>= 10.5.0 < 10.5.1210.5.12
github.commattermost_mattermost-server>= 10.5.0+incompatible < 10.5.12+incompatible10.5.12+incompatible
github.commattermost_mattermost_server_v8>= 0 < 8.0.0-20250929212932-a41db04d27468.0.0-20250929212932-a41db04d2746
mattermostmattermost10.11.0 – 10.11.3
mattermostmattermost10.12.0 – 10.12.0
mattermostmattermost10.5.0 – 10.5.11
mattermostmattermost_server>= 10.11.0 < 10.11.410.11.4
mattermostmattermost_server>= 10.12.0 < 10.12.110.12.1
mattermostmattermost_server>= 10.5.0 < 10.5.1210.5.12
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.