XSS in Dwbooster Booking Calendar Contact
CVE-2016-20084
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.002 (15.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Affected products
- Dwbooster Booking Calendar Contact — versions 0
Weakness classification (CWE)
References
- Product Reference (product)
- ExploitDB-39341 (exploit)
- VulnCheck Advisory: WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS (third-party-advisory)
Frequently asked questions
- What is CVE-2016-20084?
- CVE-2016-20084 is a high-severity vulnerability in Dwbooster Booking Calendar Contact, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-06-15.
- How severe is CVE-2016-20084?
- High severity. CVSS v3 base score is 7.2 out of 10.