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CRITICAL · 9.1

CVE-2021-40102

An issue was discovered in Concrete CMS through 8.5.5. Arbitrary File deletion can occur via PHAR deserialization in is_dir (PHP Object Injection associated with the __wakeup magic method).

Vulnerability Description

An issue was discovered in Concrete CMS through 8.5.5. Arbitrary File deletion can occur via PHAR deserialization in is_dir (PHP Object Injection associated with the __wakeup magic method).

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
ConcretecmsConcrete Cms<= 8.5.5

Related Weaknesses (CWE)

CWE-502

References

FAQ

What is CVE-2021-40102?

CVE-2021-40102 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An issue was discovered in Concrete CMS through 8.5.5. Arbitrary File deletion can occur via PHAR deserialization in is_dir (PHP Object Injection associated with the __wakeup magic method).

How severe is CVE-2021-40102?

CVE-2021-40102 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-40102?

Check the references section above for vendor advisories and patch information. Affected products include: Concretecms Concrete Cms.