WordPress plugin
Booking Calendar security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 38 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical1
- High8
- Medium28
- Low1
All Booking Calendar vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Authenticated (Editor+) Privilege Escalation to 'data_name' Parameter ≤11.8.2Update to 11.8.3 | CVE-2026-92619 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤11.4.2Update to 11.4.3 | CVE-2026-59558 | |
| High7.5 | Unauthenticated SQL Injection via dates_to_check ≤10.14.8Update to 10.14.9 | CVE-2025-14383 | |
| Critical9.8 | Unauthenticated SQL Injection ≤9.9Update to 9.9.1 | CVE-2024-1207 | |
| High8.5 | PHP Object Injection via Shortcode ≤9.1Update to 9.1.1 | CVE-2022-1463 | |
| High8.8 | SQL injection ≤8.4.3Update to 8.4.4 | CVE-2018-20556 | |
| High7.2 | Authenticated (Editor+) SQL Injection <6.2.1Update to 6.2.1 | — | |
| High8.8 | Cross-Site Request Forgery to SQL Injection <6.2.1Update to 6.2.1 | — | |
| High8.8 | Cross-Site Request Forgery leading to Cross-Site Scripting <6.2.1Update to 6.2.1 | — |
- High7.2Authenticated (Editor+) Privilege Escalation to 'data_name' Parameter
≤11.8.2Update to 11.8.3
- High7.2Unauthenticated Stored Cross-Site Scripting
≤11.4.2Update to 11.4.3
- High7.5Unauthenticated SQL Injection via dates_to_check
≤10.14.8Update to 10.14.9
- Critical9.8Unauthenticated SQL Injection
≤9.9Update to 9.9.1
- High8.5PHP Object Injection via Shortcode
≤9.1Update to 9.1.1
- High8.8SQL injection
≤8.4.3Update to 8.4.4
- High7.2Authenticated (Editor+) SQL Injection
<6.2.1Update to 6.2.1
- High8.8Cross-Site Request Forgery to SQL Injection
<6.2.1Update to 6.2.1
- High8.8Cross-Site Request Forgery leading to Cross-Site Scripting
<6.2.1Update to 6.2.1
Booking Calendar: common questions
Does Booking Calendar have known vulnerabilities?
Yes. VulnCrest Radar lists 38 known vulnerabilities in Booking Calendar: 1 critical, 8 high, 28 medium, 1 low. None are known to affect version null.
How do I check which version of Booking Calendar I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent Booking Calendar vulnerability?
CVE-2026-18496, published Oct 9, 2026: Booking Calendar <= 11.4.3 - Unauthenticated Sensitive Information Exposure in 'WPBC_FLEXTIMELINE_NAV' AJAX Action. Severity: Medium (CVSS 5.3).
Is any Booking Calendar vulnerability listed in CISA KEV?
No. None of the known Booking Calendar vulnerabilities is currently listed in the CISA KEV catalog.