CVE-2020-37071 CRITICAL

CVE-2020-37071: CraftCMS 3 vCard Plugin 1.0.0 - Remote Code Execution

Vendor Craftcms
Product CraftCMS
Weakness CWE-502 · Unsafe deserialization
Published February 3, 2026
Last update February 4, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

CraftCMS 3 vCard Plugin 1.0.0 contains a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary PHP code through a crafted payload. Attackers can generate a malicious serialized payload that triggers remote code execution by exploiting the plugin's vCard download functionality with a specially crafted request.

Key dates

02Disclosure timeline

February 3, 2026 CVE published
February 4, 2026 Record updated