XSS in Concrete Cms
CVE-2024-8291
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).
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
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 (Release Notes)
- ff5b8ace-8b95-4078-9743-eac1ca5451de (Release Notes)
Frequently asked questions
- What is CVE-2024-8291?
- CVE-2024-8291 is a medium-severity vulnerability in Concrete Cms, classified under Path Traversal. CVSS score: 4.8/10. Published 2024-09-25.
- How severe is CVE-2024-8291?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2024-8291 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.