WordPress QuickCal plugin <= 1.0.20 - Unauthenticated Stored Cross-Site Scripting via Custom Field Parameters vulnerability

Unauthenticated Stored Cross-Site Scripting via Custom Field Parameters vulnerability discovered by adhikara13 in WordPress Plugin QuickCal - Appointment Booking Calendar for WordPress versions = 1.0.20...

CVE-2026-15984

The QuickCal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Custom Field Parameters in all versions up to, and including, 1.0.20 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts ...

EUVD-2026-71885

The QuickCal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Custom Field Parameters in all versions up to, and including, 1.0.20 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts ...

CVE-2026-15984 QuickCal <= 1.0.20 - Unauthenticated Stored Cross-Site Scripting via Custom Field Parameters

The QuickCal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Custom Field Parameters in all versions up to, and including, 1.0.20 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts ...

CVE-2026-15984: Improper Neutralization of Input During Web Page Generation

The QuickCal plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Custom Field Parameters in all versions up to, and including, 1.0.20 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts ...