CVE-2025-31057

Vulnerability

Overview CVE-2025-31057 is a reflected Cross-Site Scripting (XSS) vulnerability in the LambertGroup Universal Video Player plugin for WordPress (elementor_widget_universal_video_player). The flaw stems from improper neutralization of user-supplied input during web page generation, allowing an attacker to inject arbitrary HTML and JavaScript into the response. This affects all versions up to and including 1.4.0 [1].

Exploitation

Details To exploit this vulnerability, an attacker must craft a malicious link or form submission that, when interacted with by a privileged user (e.g., an administrator), triggers the injection. The attack does not require authentication but relies on social engineering to trick the target into clicking the link or visiting a crafted page. Once the privileged user performs the action, the injected script executes in the context of their session [1].

Impact

Successful exploitation enables the attacker to execute arbitrary scripts in the victim's browser, leading to potential consequences such as session hijacking, defacement, redirection to malicious sites, or injection of advertisements and other HTML payloads. These scripts can affect both the administrator and subsequent site visitors, making the vulnerability suitable for mass-exploit campaigns [1].

Mitigation

Status As of the publication date, no official patch has been released by the plugin vendor. The Patchstack advisory recommends updating the plugin once a fix becomes available. In the interim, Patchstack offers a virtual mitigation rule that blocks exploitation attempts. Users are advised to apply this rule or consult their hosting provider for additional security measures [1].