PT-2025-26912 · WordPress · Simple User Registration

Cheng Liu · Published 2025-06-26 · Updated 2025-08-19 · CVE-2025-4334

Positive Technologies · (AI Summary)

CVSS v3.1

9.8

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: The Simple User Registration plugin for WordPress versions up to, and including, 6.3

Description: The issue is due to insufficient restrictions on user meta values that can be supplied during registration, making it possible for unauthenticated attackers to register as an administrator.

Recommendations: For versions up to, and including, 6.3, consider disabling the user registration feature until a patch is available. Restrict access to user meta values to minimize the risk of exploitation. Avoid using the plugin until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2025-4334

Affected Products

Simple User Registration

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2025-4334 · Security Note
• https://twitter.com/cracbot/status/1940002482291101895 · Twitter Post
• https://plugins.trac.wordpress.org/browser/wp-registration/trunk/inc/classes/class.register.php#L135 · Note
• https://twitter.com/CVEnew/status/1938081855451865215 · Twitter Post
• https://twitter.com/Nxploited/status/1938208229051535868 · Twitter Post
• https://twitter.com/pdnuclei_bot/status/1957925555937870003 · Twitter Post
• https://t.me/cvetracker/27076 · Telegram Post
• https://twitter.com/Nxploited/status/1938204708474355846 · Twitter Post
• https://t.me/cvenotify/126711 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1938136416384393549 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/c211e0c0-3086-43d2-853c-489f9c42b0ab?source=cve · Note