TI-2021-06517 Aliases CVE-2021-24225 GHSA-2hmj-h5rh-f294

Advanced Booking Calendar < 1.6.7 - Authenticated Reflected Cross-Site Scripting (XSS)

LOW 26CWE-79Published 2021-04-12 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Advanced Booking Calendar WordPress plugin before 1.6.7 did not sanitise the calId GET parameter in the "Seasons & Calendars" page before outputing it in an A tag, leading to a reflected XSS issue

Why it matters now

EPSS 0.00691 53rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Advanced Booking Calendar (Unknown): 1.6.7

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Advanced Booking Calendar	1.6.7 to before 1.6.7	1.6.7	Patch available	CNA

Advanced Booking Calendar VendorUnknown Affected 1.6.7 to before 1.6.7 Fixed in 1.6.7 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:elbtide:advanced_booking_calendar::::::wordpress::*	before 1.6.7	Vulnerable	Elbtide

cpe:2.3:a:elbtide:advanced_booking_calendar:*:*:*:*:*:wordpress:*:* Versions before 1.6.7 Vulnerable ·Elbtide

Remediation

Fix · CNA Advanced Booking Calendar (Unknown) Fixed in 1.6.7

Timeline

2026-10-02 Threatist record created from CVE-2021-24225
2026-10-03 Alias added: GHSA-2hmj-h5rh-f294

References

Exploit 1

https://wpscan.com/vulnerability/25ca8af5-ab48-4e6d-b2ef-fc291742f1d5

Patch 1

https://plugins.trac.wordpress.org/changeset/2503971/

TI-2022-22626 WordPress Advanced Booking Calendar Plugin <= 1.7.1 is vulnerable to SQL Injection CVSS 3.1CRITICAL 10.0
TI-2022-00608 Advanced Booking Calendar < 1.7.0 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
TI-2022-00905 Advanced Booking Calendar < 1.7.1 - Admin+ SQLi CVSS 3.1HIGH 7.2
TI-2022-00906 Advanced Booking Calendar < 1.7.1 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
TI-2022-22628 WordPress Advanced Booking Calendar Plugin <= 1.7.1 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1MEDIUM 6.5
TI-2021-06524 Advanced Booking Calendar < 1.6.8 - Authenticated Reflected Cross-Site Scripting (XSS) CVSS 3.1MEDIUM 5.4

Sources

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