CVE-2026-16259: critical vulnerability in Uix UserCenter
Uix UserCenter <= 1.0.3 - Unauthenticated Privilege Escalation
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.8epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Unknown · Uix UserCenterpublic PoCs found — 1
cve_referencewpscan.com/vulnerability/e551128c-c9b1-4e6a-a2aa-92830b7a4887/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.