XSS in Concretecms Concrete Cms
CVE-2023-44760
Multiple Cross Site Scripting (XSS) vulnerabilities in Concrete CMS v.9.2.1 allow an attacker to execute arbitrary code via a crafted script to the Header and Footer Tracking Codes of the SEO & Statistics. NOTE: the vendor disputes this because these header/footer changes can only be made by an admin, and allowing an admin to place JavaScript there is an intentional customization feature. Also, the exploitation method claimed by "sromanhu" does not provide any access to a Concrete CMS session, because the Concrete CMS session cookie is configured as HttpOnly.
Vulnerability class: XSS (Cross-Site Scripting)
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: 0.006 (48.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Concretecms Concrete Cms — versions 9.2.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/sromanhu/ConcreteCMS-Stored-XSS---TrackingCodes (Exploit, Third Party Advisory)
- www.concretecms.org/about/project-news/security/security-advisory-2023-10-31-co… (Third Party Advisory)
- github.com/sromanhu/CVE-2023-44760_ConcreteCMS-Stored-XSS---TrackingCodes/issue… (Issue Tracking)
Frequently asked questions
- What is CVE-2023-44760?
- CVE-2023-44760 is a medium-severity vulnerability in Concretecms Concrete Cms, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2023-10-23.
- How severe is CVE-2023-44760?
- Medium severity. CVSS v3 base score is 4.8 out of 10.
- Is CVE-2023-44760 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.