CVE-2020-37071

CRITICAL
2026-02-03 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Feb 04, 2026 - 16:33 vuln.today
Public exploit code
CVE Published
Feb 03, 2026 - 22:16 nvd
CRITICAL 9.8

Tags

PHP RCE Deserialization

Description

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.

Analysis

CraftCMS 3 vCard Plugin 1.0.0 has an insecure deserialization vulnerability allowing unauthenticated remote code execution through crafted vCard data.

Technical Context

The vCard Plugin 1.0.0 for CraftCMS 3 deserializes untrusted data (CWE-502) from vCard imports, allowing attackers to inject serialized PHP objects that execute arbitrary code.

Affected Products

['CraftCMS 3 vCard Plugin 1.0.0']

Remediation

Remove or update the plugin.

Priority Score

70
Low Medium High Critical
KEV: 0
EPSS: +0.5
CVSS: +49
POC: +20

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CVE-2020-37071 vulnerability details – vuln.today
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