EUVD-2026-20839
GHSA-cwf6-258p-c2v5
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
3Tags
Description
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.
Analysis
Stored cross-site scripting in Download Manager for WordPress up to version 3.3.52 allows authenticated contributors and above to inject arbitrary JavaScript through the 'sid' parameter of the 'wpdm_members' shortcode, which is stored in post metadata and executed when users access the affected page. The vulnerability stems from missing input sanitization in the members() function and absent output escaping (esc_attr()) when the 'sid' value is rendered directly into HTML id attributes. …
Sign in for full analysis, threat intelligence, and remediation guidance.
Priority Score
Share
External POC / Exploit Code
Leaving vuln.today