WordPress plugin
The Events Calendar security & vulnerabilities
Unpatched vulnerability in the latest version
At least one vulnerability affects the latest version and no fix has been released. Deactivate the plugin or restrict access to the affected feature until the vendor ships a patch.
- Critical3
- High7
- Medium37
- Low0
All The Events Calendar vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Unauthenticated PHP Object Injection ≤6.17.4Update to 6.17.4.1 | CVE-2026-95606 | |
| Critical9.8 | Unauthenticated Code Injection to Remote Code Execution via Widget 'classes' Map Callable Invocation ≤6.17.3Update to 6.17.3.1 | CVE-2026-78159 | |
| Critical9.8 | Unauthenticated PHP Object Injection to Remote Code Execution ≤6.17.4Update to 6.17.4.1 | CVE-2026-78006 | |
| High8.1 | Unauthenticated PHP Object Injection ≤6.17.2Update to 6.17.3 | CVE-2026-78265 | |
| High7.5 | Unauthenticated SQL Injection 6.15.12 – 6.16.2Update to 6.16.3 | CVE-2026-49772 | |
| High7.5 | Authenticated (Author+) Arbitrary File Read via ajax_create_import ≤6.15.17Update to 6.15.17.1 | CVE-2026-3585 | |
| High7.5 | 6.15.9 - Unauthenticated SQL Injection via s 6.15.1.1 – 6.15.9Update to 6.15.10 | CVE-2025-12197 | |
| High7.5 | Unauthenticated SQL Injection ≤6.15.1Update to 6.15.1.1 | CVE-2025-9807 | |
| Critical9.8 | Unauthenticated SQL Injection ≤6.6.4Update to 6.6.4.1 | CVE-2024-8275 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤6.6.3Update to 6.6.4 | CVE-2024-6931 |
- High8.1Unauthenticated PHP Object Injection
≤6.17.4Update to 6.17.4.1
- Critical9.8Unauthenticated Code Injection to Remote Code Execution via Widget 'classes' Map Callable Invocation
≤6.17.3Update to 6.17.3.1
- Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution
≤6.17.4Update to 6.17.4.1
- High8.1Unauthenticated PHP Object Injection
≤6.17.2Update to 6.17.3
- High7.5Unauthenticated SQL Injection
6.15.12 – 6.16.2Update to 6.16.3
- High7.5Authenticated (Author+) Arbitrary File Read via ajax_create_import
≤6.15.17Update to 6.15.17.1
- High7.56.15.9 - Unauthenticated SQL Injection via s
6.15.1.1 – 6.15.9Update to 6.15.10
- High7.5Unauthenticated SQL Injection
≤6.15.1Update to 6.15.1.1
- Critical9.8Unauthenticated SQL Injection
≤6.6.4Update to 6.6.4.1
- High7.2Unauthenticated Stored Cross-Site Scripting
≤6.6.3Update to 6.6.4
The Events Calendar: common questions
Does The Events Calendar have known vulnerabilities?
Yes. VulnCrest Radar lists 47 known vulnerabilities in The Events Calendar: 3 critical, 7 high, 37 medium. At least one is not fixed in the latest version.
How do I check which version of The Events 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 The Events Calendar vulnerability?
CVE-2026-123464, published Nov 7, 2026: The Events Calendar <= 6.18.3 - Authenticated (Contributor+) Stored Cross-Site Scripting. Severity: Medium (CVSS 6.4).
Is any The Events Calendar vulnerability listed in CISA KEV?
No. None of the known The Events Calendar vulnerabilities is currently listed in the CISA KEV catalog.