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CVE-2026-18385

MEDIUM 5.4 CVSS 3.1
Published
August 16, 2026
Last modified
August 20, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-94
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Description

The The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.16.19. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for authenticated attackers, with subscriber-level access and above, to execute arbitrary shortcodes. The partial mitigation introduced via strip_shortcodes() on [profile-first-name] and [profile-last-name] can be bypassed through the [profile-display-name format="first_last_names"] render path, the [profile-bio] render path (which re-fetches the raw description meta), and the double-bracket escape sequence [[tag]], all of which allow attacker-controlled shortcode text to reach the outer do_shortcode() call.

Affected WordPress components

  • Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress Plugin · wp-user-avatar
    Confirmed match Active
    Up to and including 4.16.19
    View on WordPress.org

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

  • properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress — Up to and including 4.16.19

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/Classes/RegistrationAuth.php#L170
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L286
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/ShortcodeParser/MemberDirectoryTag.php#L98
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/Themes/DragDrop/MemberDirectoryListing.php#L90
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/Classes/RegistrationAuth.php#L170
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L286
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/ShortcodeParser/MemberDirectoryTag.php#L98
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/Themes/DragDrop/MemberDirectoryListing.php#L90
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3635466%40wp-user-avatar&new=3635466%40wp-user-avatar
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/345f3354-d2cb-4b92-a25d-9551a5992919?source=cve
  • nvd.nist.gov Official NVD record