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Simple Event Planner vulnerabilities
Simple Event Planner has 2 known vulnerabilities in this database. The most recent published record is dated 5 Oct 2026.
- Known vulnerabilities
- 2
- Active installs
- 1,000+
- Latest version
- 1.5.8
- Last updated
- 24 Sep 2026
- Most recent
- 5 Oct 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| PHP object injection CVE-2026-97257 | High 8.8 | Up to 1.5.7 | Fixed in a later version (latest 1.5.8) | 2 d ago |
| Cross-site scripting (XSS) CVE-2022-25612 | Medium 4.1 | Up to 1.5.4 | Fixed in a later version (latest 1.5.8) | 25 Mar 2022 |
Read the published descriptions
- CVE-2026-97257, 5 Oct 2026
- Deserialization of Untrusted Data vulnerability in PressTigers Simple Event Planner simple-event-planner allows Object Injection.This issue affects Simple Event Planner: from n/a through 1.5.7. CVE record
- CVE-2022-25612, 25 Mar 2022
- Multiple Authenticated Persistent Cross-Site Scripting (XSS) vulnerabilities in Simple Event Planner WordPress plugin <= 1.5.4 allows user with author or higher user rights inject the malicious code via vulnerable parameters: &custom[event_organiser], &custom[organiser_email], &custom[organiser_contact]. CVE record
What to do if you run Simple Event Planner
If you run Simple Event Planner, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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