CVE-2026-5357 — Download Manager <= 3.3.52 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes
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.…
Published: 2026-04-09 · CVSS: 6.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7