What is CVE-2026-86707?

CVE-2026-86707 is a critical-severity vulnerability in Private Feed Key, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-09-17.

How severe is CVE-2026-86707?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Private Feed Key

CVE-2026-86707

The Private Feed Key WordPress plugin through 0.1 does not verify that the key used to authenticate a feed request is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Unknown Private Feed Key

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-86707?: CVE-2026-86707 is a critical-severity vulnerability in Private Feed Key, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-09-17.
How severe is CVE-2026-86707?: Critical severity. CVSS v3 base score is 9.8 out of 10.