CVE-2025-12813 | The Holiday class post calendar plugin for WordPress is vuln… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2025-12813
State: PUBLISHED
Assigner: Wordfence
Reserved: 2025-11-06 16:32 UTC
Published: 2025-11-11 03:30 UTC
Last updated: 2026-04-08 17:03 UTC
Primary CWE: CWE-94
CWE-94 Improper Control of Generation of Code ('Code Injecti…
Vendor / Product: strix-bubol5 / Holiday class post calendar
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
strix-bubol5	Holiday class post calendar	—	0 ≤ 7.1

Weakness (CWE)

CWE	Source	Description
CWE-94	cna	CWE-94 Improper Control of Generation of Code ('Code Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (3)