XSS in Concretecms Concrete Cms
CVE-2018-19146
Concrete5 8.4.3 has XSS because config/concrete.php allows uploads (by administrators) of SVG files that may contain HTML data with a SCRIPT element.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (61.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Concretecms Concrete Cms — versions 8.4.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.w3.org/TR/SVG2/intro.html (Third Party Advisory)
- hackerone.com/concrete5 (Third Party Advisory)
- www.concrete5.org/ (Vendor Advisory)
- hackerone.com/reports/437863 (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2018-19146?
- CVE-2018-19146 is a medium-severity vulnerability in Concretecms Concrete Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2019-06-17.
- How severe is CVE-2018-19146?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2018-19146 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.