Kirki – Freeform Page Builder, Website Builder & Customizer < 6.0.13 - Unauthenticated PHP Object Injection
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to PHP Object Injection in versions up to 6.0.13 via deserialization of untrusted input. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | Kirki – Freeform Page Builder, Website Builder & Customizer | < 6.0.13 | 6.0.13 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- WordPress
- Package
Kirki – Freeform Page Builder, Website Builder & Customizer- Disclosed
- 04.08.2026
- Updated
- 11.10.2026 10:23
Sources and licenses
Wordfence Intelligence - d9c51f6b-e3ce-4408-8fcb-a56c3b1eee04 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: Kirki – Freeform Page Builder, Website Builder & Customizer
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 36
- First → latest
- 05.2026 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 3
- High 11
- Medium 22
Disclosures per year
- 2026: 36
-
Kirki – Freeform Page Builder, Website Builder & Customizer < 6.0.13 - Unauthenticated PHP Object Injection this entry
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