Vulnerability · Published Aug 29, 2026 · Assigned by WPScan

CVE-2026-16259Uix UserCenter <= 1.0.3 - Unauthenticated Privilege Escalation

Critical 9.8

In plain English

A critical-severity privilege mismanagement in Uix UserCenter from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.5%top 57.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
Unknown	Uix UserCenter	0 – through 1.0.3

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://wpscan.com/vulnerability/e551128c-c9b1-4e6a-a2aa-92830b7a4887/ exploit, vdb-entry, technical-description