WordPress plugin
Simple Event Planner security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 3 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High1
- Medium2
- Low0
All Simple Event Planner vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.5 | Authenticated (Contributor+) PHP Object Injection ≤1.5.7Update to 1.5.8 | CVE-2026-97257 | |
| Medium5.4 | Authenticated Stored Cross-Site Scripting ≤1.5.4Update to 1.5.5 | CVE-2022-25611 | |
| Medium4.1 | Cross-Site Scripting ≤1.5.4Update to 1.5.5 | CVE-2022-25612 |
- High7.5Authenticated (Contributor+) PHP Object Injection
≤1.5.7Update to 1.5.8
- Medium5.4Authenticated Stored Cross-Site Scripting
≤1.5.4Update to 1.5.5
- Medium4.1Cross-Site Scripting
≤1.5.4Update to 1.5.5
Simple Event Planner: common questions
Does Simple Event Planner have known vulnerabilities?
Yes. VulnCrest Radar lists 3 known vulnerabilities in Simple Event Planner: 1 high, 2 medium. None are known to affect version null.
How do I check which version of Simple Event Planner 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 Simple Event Planner vulnerability?
CVE-2026-97257, published Oct 3, 2026: Simple Event Planner <= 1.5.7 - Authenticated (Contributor+) PHP Object Injection. Severity: High (CVSS 7.5).
Is any Simple Event Planner vulnerability listed in CISA KEV?
No. None of the known Simple Event Planner vulnerabilities is currently listed in the CISA KEV catalog.