CVE-2026-16259
Uix UserCenter <= 1.0.3 - Unauthenticated Privilege Escalation
CRITICAL 9.8EPSS 0.3%
The Uix UserCenter WordPress plugin through 1.0.3 does not verify that the account being modified through an unauthenticated profile-update action belongs to the requester, and it authenticates that action with a token whose signing key is hardcoded and identical across every install, allowing unauthenticated attackers to forge a token for any user, overwrite an administrator's email and password, and take over the account.
- Affected
- Uix UserCenter
- CVSS v3.1 CNA
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.28% chance of exploitation in the next 30 days, 19th percentile
- Published
- 2026-08-29
- Updated
- 2026-08-30