CVE-2026-85129 Hoo Companion 1.0.2 - Unauthenticated Stored XSS via Theme Settings Import
Unauthenticated attackers can inject arbitrary scripts via theme settings import, leading to script execution for site visitors and administrators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-85129?
CVE-2026-85129 is a high-severity cross-site scripting vulnerability in Unknown Hoo Companion, published on 13 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Hoo Companion WordPress plugin 1.0.2 does not have any authorisation or validation checks in one of its import features, and does not sanitise the data submitted to it before storing it as the active theme's settings, allowing unauthenticated attackers to inject arbitrary web scripts which will execute for anyone viewing the site, including administrators. The same request destroys the site's existing theme settings.
Weakness: CWE-79
Which versions are affected by CVE-2026-85129?
How do I fix CVE-2026-85129?
No fix has been published for CVE-2026-85129 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-2026-85129 being exploited?
There is no known exploitation of CVE-2026-85129 in the wild and no public exploit code.
Sources
Also known as GHSA-cc6h-6xh4-hfv7.