CVE-2026-18385Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content <= 4.16.19 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via First Name / Last Name Profile Field
Updated under an hour ago ()
Does this affect you?
It affects properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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.
- CVSS
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Weakness (CWE)
- CWE-94
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress properfraction:paid_membership_plugin_ecommerce_user_registration_form_login_form_user_profile_and_restrict_content_profilepress (from the name) | through 4.16.19 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/345f3354-d2cb-4b92-a25d-9551a5992919?source=cve
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/ShortcodeParser/MemberDirectoryTag.php#L98
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/Themes/DragDrop/MemberDirectoryListing.php#L90
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L286
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.19/src/Classes/RegistrationAuth.php#L170
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/ShortcodeParser/MemberDirectoryTag.php#L98
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/Themes/DragDrop/MemberDirectoryListing.php#L90
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/ShortcodeParser/Builder/FrontendProfileBuilder.php#L286
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.15/src/Classes/RegistrationAuth.php#L170
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3635466%40wp-user-avatar&new=3635466%40wp-user-avatar
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.