Read the docs
TI-2023-03128 Aliases CVE-2023-3343GHSA-6rv8-qjf4-hjgv

User Registration <= 3.0.1 - Authenticated (Subscriber+) PHP Object Injection

Priority MEDIUM 42CWE-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 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

The User Registration plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 3.0.1 via deserialization of untrusted input from the 'profile-pic-url' parameter. This allows authenticated attackers, with subscriber-level permissions and above, to inject a PHP Object. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01126 66th 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
Total

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 Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builderup to 3.0.1—No fix listedCNA
  • User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder Vendorwpeverest Affected up to 3.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wpeverest:user_registration:*:*:*:*:*:wordpress:*:*up to 3.0.1Vulnerablewpeverest
  • cpe:2.3:a:wpeverest:user_registration:*:*:*:*:*:wordpress:*:* Versions up to 3.0.1 Vulnerable ·wpeverest

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3343
  2. 2026-10-03 Alias added: GHSA-6rv8-qjf4-hjgv

References

Patch 2

Advisory 1

  • TI-2022-03588 User Registration < 2.2.4.1 - Subscriber+ Arbitrary File Upload CVSS 3.1HIGH 7.5
  • TI-2023-04806 User Registration < 3.0.4.2 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
  • TI-2023-03127 User Registration <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Upload CVSS 3.1CRITICAL 9.9
  • TI-2023-13809 WordPress User Registration plugin <= 2.3.2.1 - Broken Access Control vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2025-01300 Cross-site scripting in wpeverest User Registration & Membership – Free & Paid… CVSS 3.1MEDIUM 6.1
  • TI-2023-09774 WordPress User Registration Plugin <= 2.3.0 is vulnerable to Cross Site Scripting (XSS) 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