Simple Membership <= 4.3.4 - Privilege escalation via Registration

Improper Input Validation
CVE CVE-2023-41957
CVSS High (7.3)
Publicly Published September 25, 2023
Last Updated January 22, 2024
Researcher Rafie Muhammad
Description

The Simple Membership plugin for WordPress is vulnerable to privilege escalation due to missing input validation on the create_swpm_user function in versions up to, and including, 4.3.4. This makes it possible for unauthenticated attackers to register users with arbitrary membership levels. Since membership levels can be granted a higher user role than subscriber, this can lead to privilege escalation

References

1 affected software package

Software Type Plugin
Software Slug simple-membership (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 4.3.4
Patched Version
  • 4.3.5
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