What is CVE-2026-15231?

CVE-2026-15231 is a low-severity vulnerability in Tag, Category, And Taxonomy Manager, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 2.7/10. Published 2026-08-03.

How severe is CVE-2026-15231?

Low severity. CVSS v3 base score is 2.7 out of 10.

Auth bypass in Tag, Category, And Taxonomy Manager

CVE-2026-15231

The Tag, Category, and Taxonomy Manager WordPress plugin before 3.51.0 does not verify that a user is authorized to access a referenced post before processing it and returning derived data, allowing users with contributor privileges to disclose data from private or draft posts they do not own.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (12.4th 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 Tag, Category, And Taxonomy Manager — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

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

Frequently asked questions

What is CVE-2026-15231?: CVE-2026-15231 is a low-severity vulnerability in Tag, Category, And Taxonomy Manager, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 2.7/10. Published 2026-08-03.
How severe is CVE-2026-15231?: Low severity. CVSS v3 base score is 2.7 out of 10.