CVE-2026-13609 Frontend Admin by DynamiApps < 3.29.9 - Unauthenticated Stored Cross-Site Scripting via Form Field
Unauthenticated attackers can inject stored XSS payloads via form fields, potentially hijacking administrator sessions when they view the affected pages.
- 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-2026-13609?
CVE-2026-13609 is a high-severity cross-site scripting vulnerability in Unknown Frontend Admin by DynamiApps, published on 31 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 Frontend Admin by DynamiApps WordPress plugin before 3.29.9 decodes HTML entities in a submitted form field value after sanitizing it, which restores HTML tags that the sanitizer had neutralized. A double-encoded payload submitted by an unauthenticated visitor is therefore stored as a live tag and later output without escaping on the Frontend Admin by DynamiApps WordPress plugin before 3.29.9's front-end display surfaces, resulting in stored cross-site scripting that executes in the browser of any user, including an administrator, who views a page displaying the submitted value.
Weakness: CWE-79
Which versions are affected by CVE-2026-13609?
How do I fix CVE-2026-13609?
No fix has been published for CVE-2026-13609 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-2026-13609 being exploited?
There is no known exploitation of CVE-2026-13609 in the wild and no public exploit code.
Sources
Also known as GHSA-pgxc-8xw2-rggm.