Vulnerability in Live Composer – Free WordPress Website Builder — CVE-2026-16502

What to do now

Update Live Composer – Free WordPress Website Builder to 2.1.19 or later.

Affected versions

• Everything up to and including 2.1.18

The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.1.18 via deserialization of untrusted input . This makes it possible for authenticated attackers, with contributor-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

This description is reproduced verbatim from the public vulnerability record.

• https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.10/modules/downloads/module.php#L4972
• https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.10/modules/downloads/module.php#L4975
• https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.10/modules/downloads/module.php#L5685
• https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.16/modules/downloads/module.php#L4972
• https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.16/modules/downloads/module.php#L4975
• https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.16/modules/downloads/module.php#L5685

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.