CVE-2023-1027 MEDIUM

CVE-2023-1027: WP Meta SEO <= 4.5.3 - Missing Authorization in 'checkAllCategoryInSitemap'

Vendor Joomunited
Product WP Meta SEO
Weakness CWE-862 · Missing authorization
Published February 28, 2023
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

What the vulnerability does

01Description

The WP Meta SEO plugin for WordPress is vulnerable to unauthorized sitemap generation due to a missing capability check on the checkAllCategoryInSitemap function in versions up to, and including, 4.5.3. This makes it possible for authenticated attackers with subscriber-level access to obtain post categories. This vulnerability occurred as a result of the plugin relying on nonce checks as a means of access control, and that nonce being accessible to all authenticated users regardless of role.

Key dates

02Disclosure timeline

February 28, 2023 CVE published
April 8, 2026 Record updated