XSS in Savsofts Savsoft Quiz
CVE-2021-47962
Savsoft Quiz 5.0 contains a persistent cross-site scripting vulnerability in the user account settings page that allows authenticated attackers to inject malicious HTML and JavaScript code. Attackers can inject script payloads into user profile fields at the edit_user endpoint, which execute in the browsers of users viewing the affected profile after submission.
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: 0.002 (13.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.9% 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
- Savsofts Savsoft Quiz — versions 5.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49825 (exploit)
- savsoftquiz.com (product)
- github.com/savsofts/savsoftquiz_v5 (product)
- www.vulncheck.com/advisories/savsoft-quiz-persistent-cross-site-scripting-via-u… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47962?
- CVE-2021-47962 is a medium-severity vulnerability in Savsofts Savsoft Quiz, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-05-15.
- How severe is CVE-2021-47962?
- Medium severity. CVSS v3 base score is 6.4 out of 10.