CVE-2026-96574
The User Frontend – Membership, User Registration, User Profile, User Directory & Content Restriction with Frontend Post Submission plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpuf_payment_method' parameter in all versions up to, and including, 4.3.12 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The bypass technique involves appending a valid gateway keyword such as 'bank' to the HTML payload, causing sanitize_text_field() to yield only the keyword for routing purposes while the full malicious raw value is stored and later rendered unescaped.
- CVSS 3.1
- 6.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
References
- https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.12/Lib/Gateway/Bank.php#L102
- https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.12/includes/Admin/List_Table_Transactions.php#L204
- https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.12/includes/Frontend/Payment.php#L503
- https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.12/includes/Frontend/Payment.php#L566
- https://plugins.trac.wordpress.org/browser/wp-user-frontend/tags/4.3.12/wpuf-functions.php#L2498