What’s Vulnerable › Vulnerabilities

CVE-2023-27459: WordPress User Registration plugin <= 2.3.2.1 - Authenticated PHP Object Injection vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-26 · updated 2026-06-17
• Weakness: CWE-502

Description

Deserialization of Untrusted Data vulnerability in WPEverest User Registration.This issue affects User Registration: from n/a through 2.3.2.1.

Affected products

• User Registration & Membership: before 2.3.3 — fixed in 2.3.3

How to fix

Upgrade to a fixed version: User Registration & Membership 2.3.3. Check the vendor advisory for mitigations.

References

• https://patchstack.com/database/vulnerability/user-registration/wordpress-user-registration-plugin-2-3-2-1-authenticated-php-object-injection-vulnerability?_s_id=cve
• https://patchstack.com/database/vulnerability/user-registration/wordpress-user-registration-plugin-2-3-2-1-authenticated-php-object-injection-vulnerability?_s_id=cve

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