CVE-2016-20084

WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS

Published Jun 15, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
WordPress appointment-booking-calendar 1.1.24 contains multiple privilege escalation vulnerabilities that allow unauthenticated attackers to modify calendar settings and inject persistent cross-site scripting payloads through the admin.php page parameters. Attackers can inject malicious JavaScript into the 'ict' and 'ics' options or the calendar 'name' parameter via GET requests to execute arbitrary scripts when the calendar is displayed or accessed in the administration interface.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Codepeople appointment Booking Calendar
CPEs cpe:2.3:a:codepeople:booking_calendar_contact_form:*:*:*:*:*:wordpress:*:* cpe:2.3:a:codepeople:appointment_booking_calendar:*:*:*:*:*:wordpress:*:*
Vendors & Products Codepeople booking Calendar Contact Form
Codepeople appointment Booking Calendar
References
Type Values Removed Values Added
First Time appeared Codepeople
Codepeople booking Calendar Contact Form
CPEs cpe:2.3:a:codepeople:booking_calendar_contact_form:*:*:*:*:*:wordpress:*:*
Vendors & Products Codepeople
Codepeople booking Calendar Contact Form
Type Values Removed Values Added
First Time appeared Dwbooster
Dwbooster booking Calendar Contact
Wordpress
Wordpress wordpress
Vendors & Products Dwbooster
Dwbooster booking Calendar Contact
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description WordPress appointment-booking-calendar 1.1.24 contains multiple privilege escalation vulnerabilities that allow unauthenticated attackers to modify calendar settings and inject persistent cross-site scripting payloads through the admin.php page parameters. Attackers can inject malicious JavaScript into the 'ict' and 'ics' options or the calendar 'name' parameter via GET requests to execute arbitrary scripts when the calendar is displayed or accessed in the administration interface.
Title WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 29, 2026, 9:14 PM
Reserved
Jun 15, 2026, 11:54 AM
Status
Deferred
Published
Jun 15, 2026, 2:16 PM
Modified
Oct 29, 2026, 9:17 PM