CVE-2026-15601

The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Path Traversal (Zip Slip) in all versions up to, and including, 6.0.13 via the extract_zip_file function. This makes it possible for authenticated attackers, with custom-level access and above, to write arbitrary files on the server, which can allow for remote code execution. The install_app, update_app, and get_kirki_template_from_zip code paths accept a user-supplied app src value to construct the download URL, and no sanitization is applied to prevent a crafted ZIP from being fetched and extracted with path-traversing entry names that escape the intended destination directory.

• CWE-22

• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/app/Http/Controllers/Api/AppsController.php#L27
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/app/Services/AppsService.php#L113
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/app/Services/AppsService.php#L186
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/app/Supports/FileHandler.php#L90
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax/Apps.php#L176
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/routes/api.php#L77
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/app/Http/Controllers/Api/AppsController.php#L27
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/app/Services/AppsService.php#L113
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/app/Services/AppsService.php#L186
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/app/Supports/FileHandler.php#L90
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/includes/Ajax/Apps.php#L176
• https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/routes/api.php#L77
• https://plugins.trac.wordpress.org/changeset?reponame=&old=3617070%40kirki&new=3617070%40kirki
• https://www.wordfence.com/threat-intel/vulnerabilities/id/4ccd1314-b9b9-4f63-820c-2817a4932ee8?source=cve

Published

Aug 1, 2026

Last Modified

Aug 3, 2026

Status

Received

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