CVE-2026-86709CWE-287

CVE-2026-86709

Critical · published September 17, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
49.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00625 · 49.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-09-17T10:16Z
References (1)
https://wpscan.com/vulnerability/4b0b16eb-c638-479b-ab65-1cead53f32a8/ · [email protected]
EPSS history
Timeline
  • 18 SEP 04:02Z
    EPSS moved — → 0%
    epss
  • 17 SEP 06:00Z
    The Pressengine <= 1.0 - Unauthenticated Authentication Bypass
    cvelistv5