What’s Vulnerable › Vulnerabilities

CVE-2024-5859: Appointment Booking and Online Scheduling <= 4.4.2 - Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-21 · updated 2026-06-17
• Weakness: CWE-79

Description

The Online Booking & Scheduling Calendar for WordPress by vcita plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the ‘d’ parameter in all versions up to, and including, 4.4.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Affected products

• vcita Online Booking & Scheduling Calendar for WordPress by vcita: before 4.2.3 — fixed in 4.2.3

How to fix

Upgrade to a fixed version: vcita Online Booking & Scheduling Calendar for WordPress by vcita 4.2.3. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3104980%40meeting-scheduler-by-vcita&new=3104980%40meeting-scheduler-by-vcita&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a8ea0559-dec7-4c20-956d-dbfe7bc67634?source=cve
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3104980%40meeting-scheduler-by-vcita&new=3104980%40meeting-scheduler-by-vcita&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a8ea0559-dec7-4c20-956d-dbfe7bc67634?source=cve

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