CVE-2024-4350: Concrete CMS version 9 below 9.3.3 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer
Description
Concrete CMS versions 9.0.0 to 9.3.2 and below 8.5.18 are vulnerable to Stored XSS in RSS Displayer when user input is stored and later embedded into responses. A rogue administrator could inject malicious code into fields due to insufficient input validation. The Concrete CMS security team gave this vulnerability 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, m3dium 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)
Classification
CVE ID: CVE-2024-4350
CVSS Base Severity: MEDIUM
CVSS Base Score: 5.1
Affected Products
Vendor: Concrete CMS
Product: Concrete CMS
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 23.15% (scored less or equal to compared to others)
EPSS Date: 2025-02-15 (when was this score calculated)
References
https://github.com/concretecms/concretecms/pull/12166https://github.com/concretecms/concretecms/commit/c08d9671cec4e7afdabb547339c4bc0bed8eab06
https://documentation.concretecms.org/9-x/developers/introduction/version-history/933-release-notes?pk_vid=e367a434ef4830491723060415d52041
https://documentation.concretecms.org/developers/introduction/version-history/8518-release-notes?pk_vid=e367a434ef4830491723055758d52041