CVE-2025-49358

Vulnerability

Overview The Content Fetcher plugin for WordPress, version 1.1 and earlier, contains a DOM-based Cross-Site Scripting (XSS) vulnerability [1]. The plugin fails to properly neutralize user input during web page generation, allowing an attacker to inject malicious scripts into a page that executes in the browser's DOM context.

Exploitation

Method Exploitation requires a privileged user (such as an administrator) to perform an action like clicking a crafted link, visiting a malicious page, or submitting a specially crafted form [1]. This user interaction is necessary for the attack to succeed. The vulnerability is classified as a DOM-based XSS, meaning the payload is processed client-side rather than server-side.

Impact

If successfully exploited, an attacker could inject arbitrary HTML and JavaScript into the victim's browser. This can be used to redirect users to malicious sites, display unwanted advertisements, or steal sensitive session data [1]. The vulnerability can be leveraged in mass-exploit campaigns targeting thousands of WordPress sites regardless of their traffic or popularity.

Mitigation

Users are strongly advised to update the Content Fetcher plugin immediately to a patched version if available [1]. Those unable to update should contact their hosting provider or web developer for assistance. No workaround is provided in the available references.