CVE-2026-18335 Server-side request forgery in Kirki – Freeform Page Builder, Website Builder & Customizer
Unauthenticated attackers can exploit a blind SSRF vulnerability in the Kirki WordPress plugin to query and modify internal services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-18335?
CVE-2026-18335 is a medium-severity server-side request forgery vulnerability in themeum Kirki – Freeform Page Builder, Website Builder & Customizer, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Blind Server-Side Request Forgery in all versions up to, and including, 6.2.0 via the 'kirki_data' Parameter. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.
Weakness: CWE-918
Which versions are affected by CVE-2026-18335?
How do I fix CVE-2026-18335?
No fix has been published for CVE-2026-18335 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-18335 being exploited?
There is no known exploitation of CVE-2026-18335 in the wild and no public exploit code.
Sources
Also known as GHSA-8q4x-8xp2-6ww3.