CVE-2026-109980

MediumCVSS 4.3

Published: 28/10/2026(UTC)Updated: 28/10/2026(UTC)Translated: 28/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

12th percentile - higher than 12% of all known CVEs

Summary

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. An authenticated attacker with contributor-level access or above can 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.

Risk Assessment

An attacker with a Contributor account can access titles and dates of private posts, potentially leading to information leakage and privacy breach. This may expose confidential organizational content.

Recommendation

Update the plugin to a version later than 3.0.0. Until then, consider restricting Contributor roles or monitoring access to private posts.

Other vulnerabilities in Related Posts for WordPress plugin

CVE-2026-109979Medium
The Related Posts for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 3.0.0 via the 'rp4wp_create_link' parameter of the hidden 'rp4wp_link_related' admin page. The handle_create_link() handler verifies the nonce and that the current user can edit the parent post, but never checks that the attacker-supplied child post ID is one the user is allowed to read; LinkRepository::insert() stores the arbitrary child ID without validation, and ManageLinks::render() later calls LinkRepository::get_children() in its no-extra-args fast path, which falls through to array_map('get_post', $child_ids) — bypassing read_private_posts/read_post capability checks — and then echoes esc_html($child->post_title) in the parent's editor meta box. This makes it possible for authenticated attackers, with Contributor-level access and above, to read the titles of arbitrary non-public posts (drafts, pending, private, future, trashed) authored by higher-privileged users by linking those post IDs to a draft they own and then reading the resulting meta box.

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS