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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Joomunited Wp_Meta_Seo
cpe:2.3:a:joomunited:wp_meta_seo:*:*:*:*:*:wordpress:*:*
|
— |
<= 4.5.3
|
References 4
https://plugins.trac.wordpress.org/changeset/2870465/wp-meta-seo/trunk?contexta…
security@wordfence.com
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&ol…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/4f589e21-7417-4b43-b5…
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/4f589e21-7417-4b43-b5…
af854a3a-2127-422b-91ae-364da2661108