CVE-2026-85129: Hoo Companion 1.0.2 - Unauthenticated Stored XSS via Theme Settings Import
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.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An unauthenticated remote attacker can submit the affected import request; no account or elevated WordPress privileges are required.
Who is at risk from the injected script?
The stored script can execute in the browsers of people who view the site, including WordPress administrators. Exploitation therefore requires a victim to visit a page where the stored content executes.
What operational impact can the malicious import have besides script execution?
The same request overwrites and destroys the site's existing active-theme settings.
How can I determine whether my site is in scope?
Confirm whether the site uses the Hoo Companion WordPress plugin at version 1.0.2. The affected functionality stores imported data as the active theme's settings.