CVE-2022-2440 Information

Description

The Theme Editor plugin for WordPress is vulnerable to deserialization of untrusted input via the ‘images_array’ parameter in versions up to and including 2.8. This makes it possible for authenticated attackers with administrative privileges to call files using a PHAR wrapper that will deserialize and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.wordfence.com/threat-intel/vulnerabilities/id/88fe46bf-8e85-4550-92ad-bdd426e5a745?source=cve https://plugins.trac.wordpress.org/browser/theme-editor/trunk/ms_child_theme_editor.php#L495 https://plugins.trac.wordpress.org/changeset/3142694/

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.2