XSS in Blackcat-Cms Blackcat Cms
CVE-2023-53891
Blackcat CMS 1.4 contains a stored cross-site scripting vulnerability that allows authenticated users to inject malicious scripts into page content. Attackers can insert JavaScript payloads in the page modification interface that execute when other users view the compromised page.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (14.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Blackcat-Cms Blackcat Cms — versions 1.4
- Blackcat-Cms Blackcat Cms — versions 1.4
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/51604 (Exploit, VDB Entry, Third Party Advisory, exploit)
- blackcat-cms.org/ (Product, product)
- www.vulncheck.com/advisories/blackcat-cms-stored-cross-site-scripting-via-page-… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2023-53891?
- CVE-2023-53891 is a medium-severity vulnerability in Blackcat-Cms Blackcat Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-12-15.
- How severe is CVE-2023-53891?
- Medium severity. CVSS v3 base score is 5.4 out of 10.