CVE-2026-85678 AI Builder 2.4.1 - 2.7.7 - Contributor+ Stored XSS via Post JavaScript
Contributors can inject arbitrary JavaScript into posts, leading to script execution in the browsers of viewers, including administrators.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-85678?
CVE-2026-85678 is a medium-severity cross-site scripting vulnerability in Unknown AI Builder, published on 11 Sep 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The AI Builder WordPress plugin before 2.7.8 does not sanitise custom JavaScript saved against a post before echoing it inside a script tag on the front end, allowing users with contributor level access and above to store arbitrary JavaScript that will execute in the browser of anyone who views the post, including the editor or administrator who reviews it.
Weakness: CWE-79
Which versions are affected by CVE-2026-85678?
How do I fix CVE-2026-85678?
No fix has been published for CVE-2026-85678 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-2026-85678 being exploited?
There is no known exploitation of CVE-2026-85678 in the wild and no public exploit code.
Sources
Also known as GHSA-r7gc-58c8-xh3j.