CVE-2026-17604 Kirki <= 6.1.1 - Authenticated (Editor+) Path Traversal to Arbitrary File Read via 'data' Parameter
Authenticated editors can read arbitrary server files via path traversal in the Kirki WordPress plugin, potentially exposing sensitive configuration data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17604?
CVE-2026-17604 is a medium-severity path traversal vulnerability in themeum Kirki – Freeform Page Builder, Website Builder & Customizer, published on 16 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 6.1.1 via the 'data' parameter parameter. This makes it possible for authenticated attackers, with editor-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The intended strpos()-based guard against leaving the uploads directory is bypassed by crafting a URL that includes the uploads base path as a substring while embedding directory traversal sequences, such as /wp-content/uploads/../../wp-config.php.
Weakness: CWE-22
Which versions are affected by CVE-2026-17604?
How do I fix CVE-2026-17604?
No fix has been published for CVE-2026-17604 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-17604 being exploited?
There is no known exploitation of CVE-2026-17604 in the wild and no public exploit code.
Sources
Also known as GHSA-4vm7-68xq-qf98.