CVE-2026-85653 Cross-site scripting in Contextual Related Posts
Authenticated attackers with author-level access can inject arbitrary scripts via the other_attributes parameter, leading to stored XSS execution on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-85653?
CVE-2026-85653 is a medium-severity cross-site scripting vulnerability in ajay Contextual Related Posts, published on 22 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-85653?
How do I fix CVE-2026-85653?
No fix has been published for CVE-2026-85653 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-85653 being exploited?
There is no known exploitation of CVE-2026-85653 in the wild and no public exploit code.
Sources
Also known as GHSA-73p4-x7g3-p8jm.