Privilege Escalation Vulnerability in Expire Users Plugin for WordPress
CVE-2026-4261

8.8HIGH

Key Information:

Vendor

WordPress
Status
Expire Users
Vendor
CVE Published:
21 March 2026

What is CVE-2026-4261?

The Expire Users plugin for WordPress has a vulnerability that permits authenticated users, with Subscriber access or higher, to escalate their privileges to that of an administrator. This is achievable through the manipulation of the 'on_expire_default_to_role' meta in the 'save_extra_user_profile_fields' function, affecting all versions up to and including 1.2.2. This flaw poses significant risks as it enables unauthorized elevation of access rights, allowing potential attackers to gain full control over the affected site.

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Affected Version(s)

Expire Users * <= 1.2.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/expire-users/t...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hunter Jensen
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