CVE-2025-12813

CRITICAL EPSS 50.1%
Published Nov 11, 20257mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Nov 11, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
50.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-94 Improper Control of Generation of Code (Code Injection) Injection

References 3

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/holiday-class-post-calendar/trunk/holiday_class_post_calendar.php#L1234
  • plugins.trac.wordpress.org https://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=
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/7f7968c4-589c-4949-9f69-4a0ba4db4ea9?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.