What is CVE-2026-78153?

CVE-2026-78153 is a medium-severity vulnerability in Restrict User Access, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-09-02.

How severe is CVE-2026-78153?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Restrict User Access

CVE-2026-78153

The Restrict User Access WordPress plugin before 2.8.1 does not normalise the REST API route before checking it against the routes its content protection covers, allowing unauthenticated users to bypass that protection and read restricted content and enumerate users.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Unknown Restrict User Access

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

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

Frequently asked questions

What is CVE-2026-78153?: CVE-2026-78153 is a medium-severity vulnerability in Restrict User Access, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-09-02.
How severe is CVE-2026-78153?: Medium severity. CVSS v3 base score is 5.3 out of 10.