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TI-2023-12191 Aliases CVE-2023-27459GHSA-5r7f-qp73-wrxq

WordPress User Registration plugin <= 2.3.2.1 - Authenticated PHP Object Injection vulnerability

Priority LOW 39CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00611 49th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wpeverestUser Registrationup to 2.3.2.1—No fix listedCNA
  • User Registration Vendorwpeverest Affected up to 2.3.2.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wpeverest:user_registration_\&_membership:*:*:*:*:free:wordpress:*:*before 2.3.3Vulnerablewpeverest
  • cpe:2.3:a:wpeverest:user_registration_\&_membership:*:*:*:*:free:wordpress:*:* Versions before 2.3.3 Vulnerable ·wpeverest

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-27459
  2. 2026-10-03 Alias added: GHSA-5r7f-qp73-wrxq

References

Advisory 1

  • TI-2025-02262 User Registration & Membership < 4.1.3 - Authentication Bypass CVSS 3.1HIGH 8.1
  • TI-2025-02232 User Registration & Membership < 4.1.2- Unauthenticated Privilege Escalation CVSS 3.1HIGH 8.1
  • TI-2025-26142 WordPress User Registration plugin < 4.2.0 - Reflected Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
  • TI-2025-02874 Authorization bypass in wpeverest User Registration & Membership – Free & Paid… CVSS 3.1MEDIUM 5.3
  • TI-2024-01599 Cross-site scripting in wpeverest User Registration & Membership – Free & Paid… CVSS 3.1MEDIUM 6.1
  • TI-2025-22169 WordPress User Registration plugin <= 4.0.3 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 5.9
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences