Stored Cross-Site Scripting Vulnerability in Slope Widgets for WordPress

CVE-2024-11902

What is CVE-2024-11902?

The Slope Widgets plugin for WordPress, specifically the 'slope-reservations' shortcode, presents a significant risk due to a stored cross-site scripting (XSS) vulnerability. This issue arises from inadequate input sanitization and output escaping for user-supplied attributes. As a result, authenticated users with contributor-level or higher access rights can exploit this flaw to inject arbitrary scripts into web pages. The malicious scripts will execute whenever another user views the compromised page, potentially leading to data theft, account takeover, or other malicious activities. This vulnerability affects all versions up to and including 4.2.11 of the Slope Widgets plugin, making it crucial for users to upgrade to the latest fixed version to mitigate the risk.

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