RCE in Strix-bubol5 Holiday Class Post Calendar
CVE-2025-12813
The Holiday class post calendar plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 7.1 via the 'contents' parameter. This is due to a lack of sanitization of user-supplied data when creating a…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.008 (50.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Strix-bubol5 Holiday Class Post Calendar — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-12813?
- CVE-2025-12813 is a critical-severity vulnerability in Strix-bubol5 Holiday Class Post Calendar, classified under Code Injection. CVSS score: 9.8/10. Published 2025-11-11.
- How severe is CVE-2025-12813?
- Critical severity. CVSS v3 base score is 9.8 out of 10.