CVE-2025-12813
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-11

Last updated on: 2026-04-08

Assigner: Wordfence

Description
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.
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Meta Information
Published
2025-11-11
Last Modified
2026-04-08
Generated
2026-06-16
AI Q&A
2025-11-11
EPSS Evaluated
2026-06-15
NVD
CVE-2025-12813
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wordpress holiday_class_post_calendar 7.1
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
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Executive Summary

The Holiday class post calendar plugin for WordPress has a Remote Code Execution vulnerability in all versions up to and including 7.1. This occurs because the plugin does not properly sanitize user-supplied data in the 'contents' parameter when creating a cache file, allowing unauthenticated attackers to execute arbitrary code on the server.

Impact Analysis

This vulnerability can allow unauthenticated attackers to execute arbitrary code on your server, potentially leading to full system compromise, data theft, data loss, or disruption of services.

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