UpHeron
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Servers and applications

CVE-2021-40103

An issue was discovered in Concrete CMS through 8.5.5. Path Traversal can lead to Arbitrary File Reading and SSRF.

Severity
High 7.5
Published
27 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-2021-40103
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-40103