CVE-2021-40100medium
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
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.
References
https://documentation.concretecms.org/developers/introduction/version-history/856-release-notes
Details
Source: MITRE
Published: 2021-09-24
Updated: 2021-09-30
Type: CWE-79
Risk Information
CVSS v2
Base Score: 3.5
Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 6.8
Severity: LOW
CVSS v3
Base Score: 5.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.3
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:* versions up to 8.5.5 (inclusive)