CVE-2026-14239 Tourmaster < 5.4.8 - Stored XSS via CSRF
An attacker can trick an administrator into storing malicious JavaScript via CSRF, leading to script execution in the admin area.
- 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-2026-14239?
CVE-2026-14239 is a high-severity cross-site scripting vulnerability in Unknown tourmaster, published on 30 Jul 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 tourmaster WordPress plugin before 5.4.8 does not perform a nonce check when storing a custom-filter label taken from a request parameter, and does not escape that label when echoing it on the filter admin page, allowing an unauthenticated attacker to trick a logged-in administrator into storing JavaScript that then executes in the admin area (stored Cross-Site Scripting via CSRF).
Which versions are affected by CVE-2026-14239?
How do I fix CVE-2026-14239?
No fix has been published for CVE-2026-14239 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-2026-14239 being exploited?
There is no known exploitation of CVE-2026-14239 in the wild and no public exploit code.
Sources
Also known as GHSA-w4cp-r668-c2ch.