EUVD-2026-76798
GHSA-2x96-8ghm-3875
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
PR:L reflects minimum subscriber-level auth; AV:N for web-delivered request; C/I/A:H for full site admin takeover; S:U as impact stays within the exploited site.
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
Privilege escalation in the Add User Autocomplete WordPress plugin before 1.2 allows any authenticated user - including subscribers - to self-assign the administrator role on a WordPress multisite installation by submitting a crafted site-membership invitation request with an attacker-controlled role parameter. The plugin performs no capability check (no current_user_can()) and no nonce validation before accepting and creating the invitation, making the attack trivial for any account holder. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated WordPress session at any privilege level - subscriber or above is sufficient; no elevated role is needed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately reflects the technical severity: network-reachable, low complexity, requiring only a subscriber account, with full confidentiality/integrity/availability impact upon successful admin takeover. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the Add User Autocomplete plugin to version 1.2 or later, which introduces proper capability and nonce validation before processing site-membership invitations. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress multisite installations using the Add User Autocomplete plugin and immediately disable it on affected systems running versions before 1.2. …
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
View allShare
External POC / Exploit Code
Leaving vuln.today