CVE-2026-2986
Received Received - Intake
Stored XSS in WordPress Contextual Related Posts Plugin

Publication date: 2026-04-18

Last updated on: 2026-04-18

Assigner: Wordfence

Description
The Contextual Related Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'other_attributes' parameter in versions up to, and including, 4.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Meta Information
Published
2026-04-18
Last Modified
2026-04-18
Generated
2026-06-16
AI Q&A
2026-04-18
EPSS Evaluated
2026-06-15
NVD
CVE-2026-2986
EUVD
EUVD-2026-23674
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
contextual_related_posts plugin to 4.2.1 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

The Contextual Related Posts plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in versions up to and including 4.2.1. This vulnerability exists because the plugin does not properly sanitize or escape input provided via the 'other_attributes' parameter.

As a result, authenticated users with contributor-level access or higher can inject malicious web scripts into pages. These scripts will execute whenever any user accesses the affected page.

Impact Analysis

This vulnerability can allow attackers with contributor-level access or above to inject malicious scripts that execute in the browsers of users who visit the infected pages.

  • It can lead to theft of user credentials or session tokens.
  • It can enable unauthorized actions on behalf of users.
  • It can compromise the integrity and trustworthiness of the affected website.
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