CVE-2020-37071

CRITICAL

CraftCMS 3 vCard Plugin 1.0.0 - Code Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37071. PoCs published by Wade Guest.

AI-analyzed exploit summary This exploit leverages a deserialization vulnerability in CraftCMS vCard Plugin 1.0.0 to achieve unauthenticated remote code execution. It generates a malicious payload, encrypts it, and triggers deserialization via a crafted URL, resulting in arbitrary file write and command execution.

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.

Exploits (1)

exploitdb WORKING POC
by Wade Guest · pythonwebappsphp
https://www.exploit-db.com/exploits/48492

This exploit leverages a deserialization vulnerability in CraftCMS vCard Plugin 1.0.0 to achieve unauthenticated remote code execution. It generates a malicious payload, encrypts it, and triggers deserialization via a crafted URL, resulting in arbitrary file write and command execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: CraftCMS vCard Plugin 1.0.0
No auth needed
Prerequisites: Target must be running CraftCMS with vulnerable vCard Plugin 1.0.0 · PHP must be installed on the attacker's machine for payload encryption
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (5)

Core 5
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48492
Various Sources product
https://craftcms.com/
Various Sources product
https://plugins.craftcms.com/vcard

Scores

CVSS v3 9.8
EPSS 0.0062
EPSS Percentile 44.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-502
Status published
Products (1)
CraftCMS/CraftCMS 1.0.0
Published Feb 03, 2026
Tracked Since Feb 18, 2026