CVE-2026-5357
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
The Download Manager plugin for WordPress up to version 3.3.52 is vulnerable to Stored XSS via the 'sid' attribute of the 'wpdm_members' shortcode. Insufficient input sanitization and output escaping allow attackers with contributor-level access to inject arbitrary scripts.
Risk Assessment
Attackers can inject malicious scripts that execute in visitors' browsers, potentially leading to session theft or other attacks.
Recommendation
Update the Download Manager plugin to the latest version that includes a fix for this vulnerability.
Original NVD description (English source)
The Download Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'sid' parameter of the 'wpdm_members' shortcode in versions up to and including 3.3.52. This is due to insufficient input sanitization and output escaping on the user-supplied 'sid' shortcode attribute. The sid parameter is extracted without sanitization in the members() function and stored via update_post_meta(), then echoed directly into an HTML id attribute in the members.php template without applying esc_attr(). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page.