ConvertPlus <= 3.5.26 - Authenticated (Contributor+) PHP Object Injection

Deserialization of Untrusted Data
CVE CVE-2024-4838
CVSS 7.5 (High)
Publicly Published May 15, 2024
Last Updated May 16, 2024
Researcher haidv35 - VCS


The ConvertPlus plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.5.26 via deserialization of untrusted input from the 'settings_encoded' attribute of the 'smile_modal' shortcode. This makes it possible for authenticated attackers, with contributor-level access 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.



Vulnerability Details for ConvertPlus

Software Type Plugin
Software Slug convertplug
Patched? Yes
Remediation Update to version, or a newer patched version
Affected Version
  • <= 3.5.26
Patched Version

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