CVE-2026-86709 Pressengine WordPress - Authentication Bypass

Pressengine WordPress plugin through 1.0 contains an authentication bypass caused by the login handler issuing a session even when authentication fails, letting unauthenticated attackers log in as any user including administrators.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.62% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-287

Vendor fix

Update to the latest version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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