PT-2021-15769 · WordPress · Advanced Booking Calendar

Iohex · Published 2021-04-12 · Updated 2025-03-25 · CVE-2021-24225

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions: Advanced Booking Calendar WordPress plugin versions prior to 1.6.7

Description: The issue is related to a reflected XSS problem. It occurs because the calId GET parameter in the "Seasons & Calendars" page is not properly sanitized before being output in an A tag.

Recommendations: For versions prior to 1.6.7, update to version 1.6.7 or later to resolve the issue. As a temporary workaround, consider restricting access to the "Seasons & Calendars" page until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-24225

Affected Products

Advanced Booking Calendar

References · 5

• 🔥 https://wpscan.com/vulnerability/25ca8af5-ab48-4e6d-b2ef-fc291742f1d5 · Exploit
• https://osv.dev/vulnerability/CVE-2021-24225 · Vendor Advisory
• https://plugins.trac.wordpress.org/changeset/2503971 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-24225 · Security Note
• https://twitter.com/grok/status/1904440188060975485 · Twitter Post