CVE-2025-31428

Vulnerability

Overview A reflected cross-site scripting (XSS) vulnerability exists in the WordPress HYDRO theme by BuddhaThemes, affecting all versions up to and including 2.8. The root cause is improper neutralization of user-supplied input during web page generation, enabling an attacker to inject arbitrary HTML or JavaScript into the application's response [1].

Attack

Vector and Exploitation Exploitation requires user interaction, such as clicking a crafted link or submitting a malicious form. No authentication is needed to trigger the vulnerability, but a privileged user (e.g., an administrator) must perform the action for successful script execution. This pattern is typical of reflected XSS attacks, which are frequently used in automated mass-exploit campaigns targeting WordPress sites [1].

Impact

A successful attack allows a malicious actor to inject arbitrary scripts, resulting in actions like redirecting visitors to malicious sites, displaying unwanted advertisements, or stealing session cookies. The CVSS v3 base score of 7.1 (High) reflects the moderate to severe impact, especially given the potential for widespread automated exploitation [1].

Mitigation

Status As of the publication date, an official patch had not been released. Patchstack has issued a virtual mitigation rule to block attacks until a permanent fix becomes available. Users are strongly advised to update the theme immediately when a patched version is released, or contact their hosting provider for assistance [1].