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TI-2016-09260 Aliases CVE-2016-20084GHSA-vqrm-v8pv-6pvf

WordPress appointment-booking-calendar 1.1.24 Privilege Escalation XSS

Priority MEDIUM 62CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00245 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
dwboosterAppointment Booking Calendarup to 1.1.24—No fix listedCNA
  • Appointment Booking Calendar Vendordwbooster Affected up to 1.1.24 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-20084
  2. 2026-10-03 Alias added: GHSA-vqrm-v8pv-6pvf
  3. 2026-10-29 Affected versions changed · CNA
  4. 2026-10-29 1 new reference · CNA

References

Exploit 1

Other 1

  • TI-2016-09245 WordPress Booking Calendar Contact Form 1.0.23 SQL Injection CVSS 4.0HIGH 8.8
  • TI-2016-09244 WordPress Booking Calendar Contact Form 1.0.23 SQL Injection CVSS 4.0HIGH 8.8
  • TI-2016-09242 WordPress CP Polls 1.0.8 Persistent Cross-Site Scripting CVSS 4.0MEDIUM 5.1
  • TI-2016-09246 WordPress Booking Calendar Contact Form 1.0.23 Privilege Escalation Stored XSS CVSS 4.0MEDIUM 5.1
  • TI-2022-01560 CP Image Store with Slideshow < 1.0.68 - Unauthenticated SQLi CVSS 3.1CRITICAL 9.8
  • TI-2022-02639 Calendar Event Multi View < 1.4.07 - Unauthenticated Arbitrary Event Creation to Stored XSS CVSS 3.1MEDIUM 4.3
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences