CVE-2021-40100

An issue was discovered in Concrete CMS through 8.5.5. Stored XSS can occur in Conversations when the Active Conversation Editor is set to Rich Text.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 60%
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/616770
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes
https://hackerone.com/reports/616770