CVE-2026-15782 Cross-site scripting in WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More
Authenticated contributors can inject arbitrary scripts via OptinMonster integration, requiring specific plugin configuration to execute on victim pages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15782?
CVE-2026-15782 is a medium-severity cross-site scripting vulnerability in smub WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WPForms – AI Form Builder for WordPress – Contact Forms, Payment Forms, Survey Form, Quiz & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via OptinMonster Integration data-sitekey Attribute in Post Content in all versions up to, and including, 2.0.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the OptinMonster plugin to be installed and configured with an active inline campaign that outputs matching #om-{id} markup on the target page, as the WPForms handler only fires when OptinMonster emits its 'om.Campaign.load' event.
Weakness: CWE-79
Which versions are affected by CVE-2026-15782?
How do I fix CVE-2026-15782?
No fix has been published for CVE-2026-15782 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-2026-15782 being exploited?
There is no known exploitation of CVE-2026-15782 in the wild and no public exploit code.
Sources
Also known as GHSA-74qf-x6g6-4pr7.