CVE-2026-42723 CleanSkin - PHP Object Injection

CleanSkin <= 1.5.0 contains an unauthenticated PHP Object Injection caused by unsafe deserialization, letting remote attackers execute arbitrary code, exploit requires no authentication.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.39% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
PHP Object Injection
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
10 October 2026
Updated
15 October 2026
Weakness
CWE-502

Vendor fix

Update to a version later than 1.5.0 or the latest available version.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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