XSS in Concrete Cms
CVE-2024-7398
Concrete CMS versions 9 through 9.3.3 and versions below 8.5.19 are vulnerable to stored XSS in the calendar event addition feature because the calendar event name was not sanitized on output. Users or groups with permission to create event calendars can embed scripts, and users or groups with permission to modify event calendars can execute scripts. The Concrete CMS Security Team gave this vulnerability a CVSS v4 score of 4.6 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N Thank you, Yusuke Uchida for reporting. CNA updated this risk rank on 20 Jan 2025 by lowering the AC based on CVSS 4.0 documentation that access privileges should not be considered for AC)
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (37.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Concrete Cms — versions 9.0.0, 5.0.0
- Concretecms Concrete_cms
Weakness classification (CWE)
Public proof-of-concept exploits
References
- ff5b8ace-8b95-4078-9743-eac1ca5451de (Patch)
- ff5b8ace-8b95-4078-9743-eac1ca5451de (Patch)
- ff5b8ace-8b95-4078-9743-eac1ca5451de (Patch)
- ff5b8ace-8b95-4078-9743-eac1ca5451de (Release Notes)
- ff5b8ace-8b95-4078-9743-eac1ca5451de (Release Notes)
Frequently asked questions
- What is CVE-2024-7398?
- CVE-2024-7398 is a medium-severity vulnerability in Concrete Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-09-25.
- How severe is CVE-2024-7398?
- Medium severity. CVSS v3 base score is 5.4 out of 10.
- Is CVE-2024-7398 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.