CVE-2026-85653 json
Contextual Related Posts <= 4.4.1 - Authenticated (Author+) Stored Cross-Site Scripting via 'other_attributes' Block Parameter
published 2026-09-22 48 d ago modified 2026-09-22 47 d ago also EUVD-2026-84272
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
The Contextual Related Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'other_attributes' Block Parameter in all versions up to, and including, 4.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 47 d ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- ajay Contextual Related Posts
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/1ee59a73-c449-462d-9ff0-b652be56b73b?source=cve
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L972
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.4.0/includes/frontend/blocks/class-blocks.php#L95
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L133
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.4.0/includes/frontend/class-media-handler.php#L854
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L972
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.2.4/includes/frontend/blocks/class-blocks.php#L95
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L133
- plugins.trac.wordpress.org /browser/contextual-related-posts/tags/4.2.4/includes/frontend/class-media-handler.php#L854
- plugins.trac.wordpress.org /changeset?reponame=&old=3703115%40contextual-related-posts&new=3703115%40contextual-related-posts
Sources
- CVE List CVE-2026-85653
- NVD CVE-2026-85653
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.