CVE-2025-12813: critical vulnerability in strix-bubol5 Holiday class post calendar
Holiday class post calendar <= 7.1 - Unauthenticated Remote Code Execution via 'contents'
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8epss 0.9%
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 cache file. This makes it possible for unauthenticated attackers to execute code on the server.
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 calendarReferences
https://plugins.trac.wordpress.org/browser/holiday-class-post-calendar/trunk/holiday_class_post_calendar.php#L1234https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3414925%40holiday-class-post-calendar&new=3414925%40holiday-class-post-calendar&sfp_email=&sfph_mail=https://www.wordfence.com/threat-intel/vulnerabilities/id/7f7968c4-589c-4949-9f69-4a0ba4db4ea9?source=cve