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.
CVE-2026-2986 is a medium severity with CVSS 6.4 Stored Cross-Site Scripting issue affecting the Plugin Contextual Related Posts. It affects Versions up to 4.2.1 and is fixed in 4.2.2.
CVE-2026-2986 is tracked for the Plugin Contextual Related Posts as medium severity with CVSS 6.4. The affected range is Versions up to 4.2.1. Update Contextual Related Posts to 4.2.2 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
contextual-related-posts
View on wordpress.org
|
| CVE | CVE-2026-2986 |
| Patched Versions |
4.2.2
|
| Affected Versions |
Versions up to 4.2.1
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Contextual Related Posts < 1.8.10.2 - SQL Injection
Contextual Related Posts <= 1.8.6 - Cross-Site Request Forgery to Cross-Site Scripting
Contextual Related Posts <= 4.0.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
Contextual Related Posts <= 3.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via Block Attribute
Contextual Related Posts < 4.2.2 - Missing Authorization
Contextual Related Posts <= 3.3.1 - Cross-Site Request Forgery in crpClearCache
Contextual Related Posts <= 3.3.1 - Missing Authorization in crp_ajax_clearcache
Contextual Related Posts <= 2.9.3 - Cross-Site Request Forgery
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