CVE-2021-4346 - Ulisting Plugin
CVE-2021-4346
The uListing plugin for WordPress is vulnerable to Unauthenticated Arbitrary Account Changes in versions up to, and including, 1.6.6. This is due to missing login checks on the stm_listing_profile_edit AJAX action. This makes it possible for unauthenticated attackers to edit any account on the blog, such as changing the admin account's email address.
CVE-2021-4346
CRITICAL
CVSS 9.8
Published 2023-06-07
Updated 2026-04-08
AI Risk Critical (100/100)
Active Exploit: No strong signal
Published Exploit: No public exploit references
Priority: P1 Immediate
Severity Band
CRITICAL
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Components
1
Reference Links
3
AI Risk Engine
Critical (100/100)
Exploitability
Very High
Active Exploitation
No strong signal
Published Exploit Status
No public exploit references
AI Context
Machine-generated threat intelligence
AI
Updated 5 days ago
AI enriched 5 days ago (2026-04-11 00:31 UTC)
Technical Summary
The uListing plugin for WordPress is vulnerable to Unauthenticated Arbitrary Account Changes in versions up to, and including, 1.6.6. This is due to missing login checks on the stm_listing_profile_edit AJAX action. This makes it possible for unauthenticated attackers to edit any account on the blog, such as changing the admin account's email address.
Potential Impact
Severity is CRITICAL (CVSS 9.8). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.
Exploitability Assessment
Exploitability is assessed as Very High based on remote code execution potential, low-bar exploit prerequisites.
Primary risk drivers: remote code execution potential, low-bar exploit prerequisites
Mitigation Recommendations
Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.
Detection & Monitoring
Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.
Business Impact Lens
AI risk score 100/100 (Critical, Very High) with priority P1 Immediate. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.