UpHeron
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Servers and applications

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).

Severity
Critical 9.1
Published
24 Sept 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Concrete CMSServers and applications · cpe:a:concretecms:concrete_cms
  • Every version up to 8.5.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-40102
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-40102