CVE-2026-13352: File Upload RCE (CVSS 8.8)

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.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0058

Probability of exploitation

0.44%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-434 Unrestricted Upload

References

Other References

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

Frequently Asked Questions

What is CVE-2026-13352? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-13352? +

CVE-2026-13352 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0058, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-13352? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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