SQL Injection in Kentico Xperience
CVE-2021-47711
A SQL injection vulnerability in Kentico Xperience allows authenticated editors to inject malicious SQL queries via online marketing macro method parameters. This enables unauthorized database access and potential data manipulation by exploiting macro method input validation weaknesses.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (20.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Kentico Xperience — versions 0
Weakness classification (CWE)
References
- devnet.kentico.com/download/hotfixes (Product, vendor-advisory, patch)
- www.vulncheck.com/advisories/kentico-xperience-online-marketing-macros-sql-inje… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-47711?
- CVE-2021-47711 is a high-severity vulnerability in Kentico Xperience, classified under SQL Injection. CVSS score: 8.8/10. Published 2025-12-18.
- How severe is CVE-2021-47711?
- High severity. CVSS v3 base score is 8.8 out of 10.