CVE-2025-58820

Vulnerability

Overview

The Themepoints Carousel Ultimate plugin for WordPress versions up to and including 1.8 suffers from a Stored Cross-Site Scripting (XSS) vulnerability due to improper neutralization of user-supplied input during web page generation [1]. This flaw falls under CWE-79 and allows an authenticated attacker with sufficient privileges to inject malicious scripts into the plugin's carousel functionality.

Exploitation

Requirements

Exploitation requires a privileged user role (such as an editor or administrator) to submit crafted input that is not sanitized before being stored and later rendered on pages displaying the carousel [1]. While the attacker must have some level of access, the stored payload will execute in the browsers of any visitor viewing the affected page, including site guests. User interaction from the victim is not required for script execution, though the initial injection step does require an authenticated session.

Impact

Successful exploitation enables an attacker to inject arbitrary HTML and JavaScript payloads, such as redirects, advertisements, or other malicious scripts [1]. These payloads execute in turn can be used for phishing, session hijacking, or defacement. The advisory notes that vulnerabilities of this type are frequently leveraged in mass-exploit campaigns targeting thousands of WordPress sites regardless of their size or popularity [1].

Mitigation

The vendor has not released a patched version beyond 1.8 at the time of publication. The recommended immediate action is to update the plugin if a newer version becomes available; otherwise, site administrators should disable the plugin or seek assistance from their hosting provider or web developer [1]. No workaround is provided in the advisory.