Unauthenticated PHP object injection in WordPress CleanSkin theme
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-502.
Summary
AncoraThemes CleanSkin WordPress theme versions up to and including 1.5.0 are affected. The flaw is a deserialization of untrusted data (CWE-502) that lets an attacker inject PHP objects. An unauthenticated remote attacker can exploit it without user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Unauthenticated PHP Object Injection in CleanSkin <= 1.5.0 versions.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| AncoraThemes | CleanSkin | up to 1.5.0 | — | No fix listed | CNA |
- CleanSkin VendorAncoraThemes Affected up to 1.5.0 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for CleanSkin.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-42723
- 2026-10-11 Alias added: GHSA-cpgp-q9h2-r8v8
References
More AncoraThemes vulnerabilities
- TI-2026-46746 WordPress Agora theme <= 1.9 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-46745 WordPress Advice theme <= 1.18.0 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-46744 WordPress Adrena theme <= 1.2.14 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-46743 WordPress Accalia theme <= 1.5.3 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-46742 WordPress Abogado theme <= 1.18 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2026-18078 WordPress Jardi theme <= 1.7.2 - PHP Object Injection vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-42723 · CVE Program
- CVE-2026-42723 · NVD
- FIRST EPSS
- GHSA-cpgp-q9h2-r8v8 · 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