Kirki < 6.0.13 - Unauthenticated PHP Object Injection
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.
Summary
The Kirki WordPress plugin before 6.0.13 does not restrict which classes may be instantiated when it deserialises data that unauthenticated users can store, leading to PHP Object Injection that is triggered when an administrator later reviews the stored data. With a suitable gadget chain present on the site (via another installed Kirki WordPress plugin before 6.0.13, , or an outdated WordPress version), this could be leveraged to perform a variety of attacks, such as remote code execution.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Kirki | before 6.0.13 | 6.0.13 | Patch available | CNA |
- Kirki VendorUnknown Affected before 6.0.13 Fixed in 6.0.13 Patch available CNA
Remediation
- Fix · CNA Kirki (Unknown) Fixed in 6.0.13
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Kirki 6.0.13
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2026-10873 Kirki < 6.0.13 - Unauthenticated SQL InjectionPriority MEDIUM 44
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12720
- 2026-10-03 Alias added: GHSA-rpvq-6gf9-58vg
References
Sources
- CVE-2026-12720 · CVE Program
- CVE-2026-12720 · NVD
- FIRST EPSS
- GHSA-rpvq-6gf9-58vg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences