What’s Vulnerable › Vulnerabilities
CVE-2026-15601: Kirki <= 6.0.13 - Authenticated (Editor+) Path Traversal to Arbitrary File Write (Zip Slip)
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-01 · updated 2026-08-12
- Weakness: CWE-22
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
References
- 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
Get alerted when CVE-2026-15601 or the next vulnerability affects your stack