🛡️ CVE-2023-1027 — wp-meta-seo

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-862 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

CVE-2023-1027 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.

Affected software

CVE-2023-1027 is recorded against 1 package.

  • wp-meta-seo (fixed in 4.5.3)

Timeline and source

Published on 28 February 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

plugins.trac.wordpress.org
plugins.trac.wordpress.org
www.wordfence.com
plugins.trac.wordpress.org
plugins.trac.wordpress.org
www.wordfence.com

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE CWE-862
Public Exploit ✅ No
Source NVD
Published 2023-02-28
Updated 2026-08-11
Modified 2026-06-17

Affected Packages

Software From version Fixed in
wp-meta-seo — 4.5.3

References

Similar Threats

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