plugin

Holiday Class Post Calendar Vulnerabilities

1 known security issue reported for the Holiday Class Post Calendar WordPress plugin. Most recent disclosed Nov 10, 2025.

1 critical

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Holiday class post calendar <= 7.1 - Unauthenticated Remote Code Execution via 'contents'

critical

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...

CVSS:
9.8
Affected:
up to 7.1
Fixed in:
7.2
Disclosed:
Nov 10, 2025

CVE-2025-12813 on NVD →

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