What’s Vulnerable › Vulnerabilities
CVE-2018-18872
- Severity: medium (CVSS 5.4 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2019-05-13 · updated 2026-06-17
- Weakness: CWE-79
Description
The Kieran O'Shea Calendar plugin before 1.3.11 for WordPress has Stored XSS via the event_title parameter in a wp-admin/admin.php?page=calendar add action, or the category name during category creation at the wp-admin/admin.php?page=calendar-categories URI.
Affected products
- kieranoshea Calendar: before 1.3.11 — fixed in 1.3.11
How to fix
Upgrade to a fixed version: kieranoshea Calendar 1.3.11. Check the vendor advisory for mitigations.
References
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