Unauthorized Sitemap Generation in WP Meta SEO Plugin for WordPress
CVE-2023-1027

4.3MEDIUM

Key Information:

Vendor

Wordpress
Status
WP Meta SEO
Vendor
CVE Published:
28 February 2023

What is CVE-2023-1027?

The WP Meta SEO plugin for WordPress has a vulnerability that allows authenticated users with subscriber-level access to generate unauthorized sitemaps. This flaw arises from a missing capability check in the checkAllCategoryInSitemap function, which fails to properly restrict access. The plugin's reliance on nonce checks for access control is inadequate, as the nonce is exposed to all authenticated users, regardless of their assigned role. As a result, potential attackers can exploit this weakness to access sensitive post categories.

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Deploy the Patch

Affected Version(s)

WP Meta SEO * <= 4.5.3

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/2870465/wp-m...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marco Wotschka
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