Description
The Same Category Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the widget title placeholder functionality in all versions up to, and including, 1.1.19. This is due to the use of `htmlspecialchars_decode()` on taxonomy term names before output, which decodes HTML entities that WordPress intentionally encodes for safety. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
kometschuh Same Category Posts
Default version status: unaffected
0 to ≤ 1.1.19affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/70434876-4876-4da8-9af1-6f6ef5632f26?source=cve ↗
- https://plugins.trac.wordpress.org/browser/same-category-posts/tags/1.1.19/same-category-posts.php#L665 ↗
- https://plugins.trac.wordpress.org/browser/same-category-posts/tags/1.1.19/same-category-posts.php#L639 ↗
- https://plugins.trac.wordpress.org/browser/same-category-posts/tags/1.1.19/same-category-posts.php#L707 ↗
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3444428%40same-category-posts&new=3444428%40same-category-posts&sfp_email=&sfph_mail= ↗