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CVE-2021-36847

MEDIUM 4.8 CVSS 3.1
Published
August 22, 2022
Last modified
June 17, 2026
NVD status
Modified
Reported by
audit@patchstack.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Description

Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in WebbaPlugins Webba Booking plugin <= 4.2.21 at WordPress.

Affected WordPress components

  • Easy Appointment Booking & Scheduling System – Webba Booking Calendar Plugin · webba-booking-lite
    Confirmed match Active
    From <= 4.2.21 (including) to 4.2.21 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • WebbaPlugins Webba Booking (WordPress plugin) — From <= 4.2.21 (including) to 4.2.21 (including)
  • webba-booking webba_booking — Before 4.2.22

References

  • patchstack.com https://patchstack.com/database/vulnerability/webba-booking-lite/wordpress-webba-booking-plugin-4-2-21-authenticated-stored-cross-site-scripting-xss-vulnerability Patch, Third Party Advisory
  • wordpress.org https://wordpress.org/plugins/webba-booking-lite/#developers Product, Release Notes, Third Party Advisory
  • nvd.nist.gov Official NVD record