CVE-2025-58652

Vulnerability

Analysis

The Carousel Ultimate WordPress plugin, version 1.8 and earlier, contains a stored Cross-Site Scripting (XSS) vulnerability due to improper neutralization of user input during web page generation [1]. This flaw occurs when the plugin fails to sanitize or escape input fields before storing them, allowing malicious HTML and JavaScript to be embedded [1].

Exploitation

Exploitation requires an authenticated user with sufficient privileges (e.g., author or contributor) to submit crafted input that is later rendered on the site [1]. No direct user interaction from a victim is needed for initial injection; the stored payload executes automatically when any visitor loads a page containing the malicious content [1]. The attack surface includes any page that displays the vulnerable carousel output.

Impact

A successful exploit enables an attacker to inject arbitrary scripts that execute in the browsers of site visitors. Common payloads include redirects to malicious websites, injected advertisements, defacement, or data exfiltration by capturing cookies or session tokens [1]. This can lead to reputational damage, loss of visitor trust, and potential further compromise of site integrity.

Mitigation

The vendor has not released a patched version; users are strongly advised to update the plugin immediately if a fix becomes available [1]. If updating is not possible, temporary measures include restricting user roles that can submit content, or employing a web application firewall (WAF) to block malicious payloads [1]. Site administrators should also review existing stored content for signs of compromise.