PT-2026-33602 · WordPress · Contextual Related Posts

Athiwat Tiprasaharn + 1 · Published 2026-04-18 · Updated 2026-04-21 · CVE-2026-2986

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Contextual Related Posts versions prior to 4.2.2

Description The Contextual Related Posts plugin for WordPress contains a Stored Cross-Site Scripting issue. Authenticated attackers with contributor-level access or higher can inject arbitrary web scripts into pages via the other attributes parameter due to insufficient input sanitization and output escaping. These scripts execute whenever a user visits the affected page.

Recommendations Update to a version newer than 4.2.1. Avoid using the other attributes parameter until the update is applied.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-2986

Affected Products

Contextual Related Posts

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-2986 · Security Note
• https://twitter.com/CyberWolfGuard/status/2046702699006075319 · Twitter Post
• https://plugins.trac.wordpress.org/changeset/3481684/contextual-related-posts · Note
• https://twitter.com/CVEnew/status/2045467310140321900 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/8f59e069-a953-47b6-8106-55f55df722ed?source=cve · Note