What’s Vulnerable › Vulnerabilities

CVE-2021-24712: Appointment Hour Booking – WordPress Booking Plugin < 1.3.17 - Authenticated Stored XSS

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-10-11 · updated 2026-06-17
• Weakness: CWE-79

Description

The Appointment Hour Booking WordPress plugin before 1.3.17 does not properly sanitize values used when creating new calendars.

Affected products

• codepeople Appointment Hour Booking – Booking Calendar: before 1.3.17 — fixed in 1.3.17

How to fix

Upgrade to a fixed version: codepeople Appointment Hour Booking – Booking Calendar 1.3.17. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/e677e51b-0d3f-44a5-9fcd-c159786b9926
• https://wpscan.com/vulnerability/e677e51b-0d3f-44a5-9fcd-c159786b9926

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