CVE-2025-3704

Vulnerability

Overview The CVE-2025-3704 vulnerability in the DBAR Productions WordPress plugin Volunteer Sign Up Sheets (pta-volunteer-sign-up-sheets) stems from improper neutralization of input during web page generation, leading to stored Cross-Site Scripting (XSS) [1]. The flaw affects all versions from n/a through 5.5.5, where user-supplied data is not correctly sanitized before being stored and later displayed to visitors.

Exploitation and

Attack Surface Exploitation requires that a privileged user (such as a site administrator or editor) interacts with a crafted link, page, or form, as noted in the reference [1]. An attacker with the ability to provide input that gets stored (for example, via sign-up sheet fields) can inject malicious scripts. Successful exploitation does not require special network access beyond being able to reach the WordPress admin interface or submitting a crafted request.

Impact

If exploited, an attacker can inject arbitrary scripts, which execute when other users—including site visitors—access the affected pages [1]. This can be used to redirect users to malicious sites, display advertisements, or steal session cookies, potentially compromising the site and its users.

Mitigation and

Resolution The vendor has released version 5.5.5, which contains the patch, available on the official GitHub repository [1]. Users are strongly advised to update immediately. The reference notes that the patch has not been deployed via the WordPress.org SVN repository due to vendor difficulties, so manual updating from GitHub may be required. Auto-update features available to Patchstack users can also apply the fix [1].