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CVE-2026-5357

MEDIUM 6.4 CVSS 3.1
Published
April 9, 2026
Last modified
July 24, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

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.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • codename065 Download Manager — Up to and including 3.3.52

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.51/src/User/User.php#L175
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.51/src/User/views/members.php#L10
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/download-manager/trunk/src/User/User.php#L175
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/download-manager/trunk/src/User/views/members.php#L10
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3501300%40download-manager&new=3501300%40download-manager&sfp_email=&sfph_mail=
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/27fc81b0-c03a-4de7-bc38-791401d1685b?source=cve
  • nvd.nist.gov Official NVD record