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CVE-2026-109980: Related Posts for WordPress <= 3.0.0 - Missing Authorization to Authenticated (Contributor+) Sensitive Information Exposure via 'rp4wp_view' Parameter

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-28 · updated 2026-10-28
• Weakness: CWE-862

Description

The Related Posts for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.0.0 via the 'rp4wp_view' parameter. This makes it possible for authenticated attackers, with contributor-level access and above, to extract the titles and publication dates of all private posts site-wide, normally restricted to Editor-level users and above. The page's existing authorization check only verifies edit_posts and edit_post on a parent post the attacker owns, both of which any Contributor satisfies, leaving no effective gate against reading other authors' private posts.

Affected products

• Related Posts for WordPress: through 3.0.0

References

• https://plugins.trac.wordpress.org/browser/related-posts-for-wp/tags/3.0.0/src/Admin/LinkScreen/ListTable.php#L169
• https://plugins.trac.wordpress.org/browser/related-posts-for-wp/tags/3.0.0/src/Admin/LinkScreen/ListTable.php#L357
• https://plugins.trac.wordpress.org/browser/related-posts-for-wp/tags/3.0.0/src/Admin/LinkScreen/Page.php#L107
• https://plugins.trac.wordpress.org/browser/related-posts-for-wp/tags/3.0.0/src/Admin/LinkScreen/Page.php#L286
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3757484%40related-posts-for-wp&new=3757484%40related-posts-for-wp
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6c197521-6e8d-4cdc-b4a3-0c165ea5ff6a?source=cve

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