Auth bypass in Simple Restrict
CVE-2026-15939
The Simple Restrict WordPress plugin before 1.2.9 does not enforce its content-restriction permission check on the REST API the way it does on the front end, relying there on a generic capability check instead of the Simple Restrict WordPress plugin before 1.2.9's own permission system, allowing users with contributor-level access or above to read the content of restricted posts and pages they were never granted access to.
Vulnerability class: Broken Access Control
EPSS: 0.002 (7.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Unknown Simple Restrict — versions 0
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-15939?
- CVE-2026-15939 is a low-severity vulnerability in Simple Restrict, classified under Incorrect Authorization. CVSS score: 2.7/10. Published 2026-08-02.
- How severe is CVE-2026-15939?
- Low severity. CVSS v3 base score is 2.7 out of 10.