CVE-2026-15601 json
Kirki <= 6.0.13 - Authenticated (Editor+) Path Traversal to Arbitrary File Write (Zip Slip)
published 2026-08-01 3 mo ago modified 2026-08-12 2 mo ago also EUVD-2026-51745
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
Affected products
- themeum Kirki – Freeform Page Builder, Website Builder & Customizer
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/4ccd1314-b9b9-4f63-820c-2817a4932ee8?source=cve
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.13/app/Supports/FileHandler.php#L90
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.13/app/Services/AppsService.php#L113
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.13/app/Services/AppsService.php#L186
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.13/app/Http/Controllers/Api/AppsController.php#L27
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.13/routes/api.php#L77
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.13/includes/Ajax/Apps.php#L176
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.12/app/Supports/FileHandler.php#L90
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.12/app/Services/AppsService.php#L113
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.12/app/Services/AppsService.php#L186
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.12/app/Http/Controllers/Api/AppsController.php#L27
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.12/routes/api.php#L77
- plugins.trac.wordpress.org /browser/kirki/tags/6.0.12/includes/Ajax/Apps.php#L176
- plugins.trac.wordpress.org /changeset?reponame=&old=3617070%40kirki&new=3617070%40kirki
Sources
- CVE List CVE-2026-15601
- NVD CVE-2026-15601
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.