CVE Catalog

CVE-2026-87759

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

14th percentile - higher than 14% of all known CVEs

Summary

The Add User Autocomplete WordPress plugin before 1.2 does not perform any capability or nonce check before creating a pending site-membership invitation carrying a caller-supplied role, allowing any authenticated user, such as a subscriber, to grant themselves the administrator role on a multisite installation.

Risk Assessment

A low-privileged user can escalate privileges to administrator, leading to full site takeover on a multisite installation.

Recommendation

Update the Add User Autocomplete plugin to version 1.2 or later. Check for unauthorized invitations or accounts with elevated privileges.

Related vulnerabilities

Original NVD description (English source)

The Add User Autocomplete WordPress plugin before 1.2 does not perform any capability or nonce check before creating a pending site-membership invitation carrying a caller-supplied role, allowing any authenticated user, such as a subscriber, to grant themselves the administrator role on a multisite installation.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS