What’s Vulnerable › Vulnerabilities

CVE-2020-9371

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-03-04 · updated 2026-06-17
• Weakness: CWE-79

Description

Stored XSS exists in the Appointment Booking Calendar plugin before 1.3.35 for WordPress. In the cpabc_appointments.php file, the Calendar Name input could allow attackers to inject arbitrary JavaScript or HTML.

Affected products

• codepeople Appointment Booking Calendar: before 1.3.35 — fixed in 1.3.35

How to fix

Upgrade to a fixed version: codepeople Appointment Booking Calendar 1.3.35. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/156694/WordPress-Appointment-Booking-Calendar-1.3.34-CSV-Injection.html
• https://drive.google.com/open?id=1NNcYPaJir9SleyVr4cSPqpI2LNM7rtx9
• https://wordpress.org/plugins/appointment-booking-calendar/#developers
• https://wpvulndb.com/vulnerabilities/10110
• https://www.hotdreamweaver.com/support/view.php?id=815925
• http://packetstormsecurity.com/files/156694/WordPress-Appointment-Booking-Calendar-1.3.34-CSV-Injection.html
• https://drive.google.com/open?id=1NNcYPaJir9SleyVr4cSPqpI2LNM7rtx9
• https://wordpress.org/plugins/appointment-booking-calendar/#developers
• https://wpvulndb.com/vulnerabilities/10110
• https://www.hotdreamweaver.com/support/view.php?id=815925

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