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Critical 9.8Published Aug 29, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects Unknown Uix UserCenter. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-269
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WPScan
NVD analysis
Deferred
Record last updated
Aug 30, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Unknown Uix UserCenter
unknown:uix_usercenter (from the name)
through 1.0.3
CNA record

References

  • exploit, vdb-entry, technical-description

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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