XSS in Schlix Cms
CVE-2021-47834
Schlix CMS 2.2.6-6 contains a persistent cross-site scripting vulnerability that allows authenticated users to inject malicious scripts into category titles. Attackers can create a new contact category with a script payload that will execute when the page is viewed by other users.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.7% 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
- Schlix Cms — versions 2.2.6-6
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49837 (exploit)
- www.schlix.com/ (product)
- www.vulncheck.com/advisories/schlix-cms-title-persistent-cross-site-scripting-a… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47834?
- CVE-2021-47834 is a medium-severity vulnerability in Schlix Cms, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-16.
- How severe is CVE-2021-47834?
- Medium severity. CVSS v3 base score is 6.4 out of 10.