CVE-2026-86709

CRITICAL CVSS 3.1: 9.8 EPSS 0.34%
Updated Sep 18, 2026
WordPress
Parameter Value
CVSS 9.8 (CRITICAL)
Type CWE-287 (Improper Authentication)
Vendor WordPress
Public PoC No

The Pressengine WordPress plugin through 1.0 does not stop its login handler from issuing a session when authentication fails, allowing unauthenticated attackers to log in as any user, including administrators.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1