Simple Login Log <= 1.1.3 - Authenticated (Administrator+) PHP Object Injection

Deserialization of Untrusted Data
CVE CVE-2025-49438
CVSS Medium (6.6)
Publicly Published August 17, 2025
Last Updated January 6, 2026
Researcher Drew Webber (mcdruid)
Description

The Simple Login Log plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 1.1.3 via deserialization of untrusted input. This makes it possible for authenticated attackers, with administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software. 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.

References

1 affected software package

Software Type Plugin
Software Slug simple-login-log (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.1.3
Patched Version
  • 2.0.0
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