Paid 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

5.4
Improper Control of Generation of Code ('Code Injection')
CVE CVE-2026-18385
CVSS 5.4 (Medium)
Publicly Published August 15, 2026
Last Updated August 16, 2026
Researchers stealthcopter
hashiramasenju333

Description

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.

References

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Vulnerability Details for Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress

Software Type Plugin
Software Slug wp-user-avatar (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.17.0, or a newer patched version
Affected Version
  • <= 4.16.19
Patched Version
  • 4.17.0

Recent vulnerabilities in Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress

# Title CVE ID CVSS Researchers Date
1 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content <= 4.17.4 - Reflected Cross-Site Scripting via ppress_billing_address Filename Parameter CVE-2026-92551 6.1 UKO October 2, 2026
2 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 CVE-2026-92536 8.8 Jakub Herman October 2, 2026
3 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content <= 4.17.2 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'eup_bio' Biography Field (Entity-Encoded Shortcode Bracket) CVE-2026-85658 8.1 Md. Moniruzzaman Prodhan (NomanProdhan) September 18, 2026
4 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress <= 4.17.1 - Unauthenticated Arbitrary Plugin Installation via Brute Force CVE-2026-66047 8.1 Jon Bytyqi August 31, 2026
5 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress < 4.17.1 - Unauthenticated Arbitrary Shortcode Execution CVE-2026-19848 7.3 Jakub Herman August 28, 2026
6 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 CVE-2026-13352 8.8 skyv3il, Chirita Catalin-Andrei (CC99IE) July 16, 2026
7 ProfilePress <= 4.16.17 - Unauthenticated Privilege Escalation CVE-2026-12497 9.8 Muni Nitish Kumar Yaddala July 3, 2026
8 ProfilePress <= 4.16.16 - Insecure Direct Object Reference to Authenticated (Subscriber+) Subscription Cancellation CVE-2026-10820 4.3 Haitam Lazaar June 6, 2026
9 Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress <= 4.16.13 - Authenticated (Subscriber+) Stored Cross-Site Scripting CVE-2026-41556 6.4 Niv Kochan April 23, 2026
10 ProfilePress <= 4.16.12 - Missing Authorization to Authenticated (Subscriber+) Inactive Membership Plan Subscription CVE-2026-4949 4.3 Supakiad S. (m3ez) April 15, 2026

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