Vulnerability · Published Aug 1, 2026 · Assigned by Wordfence
CVE-2026-15601Kirki <= 6.0.13 - Authenticated (Editor+) Path Traversal to Arbitrary File Write (Zip Slip)
Medium 4.9
In plain English
A medium-severity path traversal in Kirki – Freeform Page Builder, Website Builder & Customizer from themeum. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| themeum | Kirki – Freeform Page Builder, Website Builder & Customizer | 0 – through 6.0.13 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4ccd1314-b9b9-4f63-820c-2817a4932ee8?source=cve
- 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/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/Http/Controllers/Api/AppsController.php#L27
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/routes/api.php#L77
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.13/includes/Ajax/Apps.php#L176
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/app/Supports/FileHandler.php#L90
- 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/Http/Controllers/Api/AppsController.php#L27
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/routes/api.php#L77
- https://plugins.trac.wordpress.org/browser/kirki/tags/6.0.12/includes/Ajax/Apps.php#L176
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3617070%40kirki&new=3617070%40kirki