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Medium severity · published Sep 24, 2024
CVE-2024-8291
Concrete CMS Stored XSS in Image Editor Background Color
4.8
CVSS
0.5%
EPSS
No
On KEV
Description
Concrete CMS versions 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in Image Editor Background Color.  A rogue admin could add malicious code to the Thumbnails/Add-Type. The Concrete CMS Security Team gave this a CVSS v4 score of 5.1 with vector https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N. Thanks,  Alexey Solovyev for reporting. (CNA updated this risk rank on 17 Jan 2025 by lowering the AC based on CVSS 4.0 documentation that access privileges should not be considered for AC).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Concrete CMS · Concrete CMS
9.0.0 before 9.3.4; 5.0.0 before 8.5.19 · source: vendor, NVD
Affected product
CC
Concrete CMS
Concrete CMS
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-8291
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-8291
Release Notes
https://documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notes
Release Notes
https://documentation.concretecms.org/developers/introduction/version-history/8519-release-notes
Patch
https://github.com/concretecms/concretecms/commit/dbce253166f6b10ff3e0c09e50fd395370b8b065
Patch
https://github.com/concretecms/concretecms/pull/12183
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