What the vulnerability does
01Description
The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the start_timestamp parameter in all versions up to, and including, 1.9.5 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.
Explanation of Vulnerability in Simple Terms
02Summary
WPForms versions up to 1.9.5 contain a stored cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts into form data. When other users view or interact with affected forms, the injected code executes in their browsers. This can lead to session hijacking, credential theft, or unauthorized actions performed on behalf of the victim.
What an attacker can do
03Attacker Capabilities
Inject malicious JavaScript that executes when other users view or submit forms, potentially stealing credentials or session tokens.
Potential impact on your site
04Site Impact
Authenticated users can inject code into forms that affects other site visitors and administrators, compromising user accounts and site security.
Conditions required to exploit
05Prerequisites
Attacker must have a WordPress user account with form creation/editing permissions. Victim must view or interact with the compromised form.
Key dates
06Disclosure timeline
May 9, 2025
CVE published
April 8, 2026
Record updated
