CVE-2019-25744 WordPress Popup Builder 3.49 Persistent Cross-Site Scripting
Authenticated attackers can inject malicious scripts via the post_title parameter in Popup Builder, leading to persistent XSS execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-25744?
CVE-2019-25744 is a medium-severity cross-site scripting vulnerability in Popup-Builder Popup Builder, published on 4 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
WordPress Popup Builder 3.49 contains a persistent cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by breaking out of option tags in the post_title parameter. Attackers can submit crafted POST requests to the post.php endpoint with script payloads in the post_title field that execute when pages or posts display popup selections.
Weakness: CWE-79
Which versions are affected by CVE-2019-25744?
How do I fix CVE-2019-25744?
No fix has been published for CVE-2019-25744 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-2019-25744 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25744 exists.
Sources
Also known as GHSA-hc3x-x9g3-2rqp.