Code injection in properfraction Paid Membership Plugin, Ecommerce, User Registration…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| properfraction | Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress | up to 4.16.19 | — | No fix listed | CNA |
- Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress Vendorproperfraction Affected up to 4.16.19 Fixed in — No fix listed CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:properfraction:profilepress:*:*:*:*:*:*:*:* | — | — | properfraction |
- cpe:2.3:a:properfraction:profilepress:*:*:*:*:*:*:*:* Versions — — ·properfraction
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18385
- 2026-10-03 Alias added: GHSA-7fv3-hq52-c73p
References
Other 10
- 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
More properfraction vulnerabilities
- TI-2021-13635 ProfilePress 3.0 - 3.1.3 - Unauthenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2021-13638 ProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in File Uploader Component CVSS 3.1CRITICAL 9.8
- TI-2021-13637 ProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in Image Uploader Component CVSS 3.1CRITICAL 9.8
- TI-2021-13636 ProfilePress 3.0 - 3.1.3 - Authenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
- TI-2024-12168 ProfilePress < 4.15.20 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
- TI-2024-12167 ProfilePress < 4.15.20 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
Sources
- CVE-2026-18385 · CVE Program
- CVE-2026-18385 · NVD
- FIRST EPSS
- GHSA-7fv3-hq52-c73p · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences