CVE-2021-40102

EUVD-2021-27291
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).
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 71%
Affected Products (NVD)
VendorProductVersion
concretecmsconcrete_cms
𝑥
≤ 8.5.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes
https://hackerone.com/reports/921288
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes
https://hackerone.com/reports/921288