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CVE-2023-43655

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CVE-2023-43655

Published: Sep 29, 2023

Modified: Jun 18, 2025

PUBLISHED

CVSS v3.1

6.4

MEDIUM

Description

Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has `register_argc_argv` enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice.

VendorProductVersions

composer

composer

affected
2.6.4, 2.2.21, 1.10.27
affected
>= 2.0, < 2.2.22
affected
< 1.10.27

Weaknesses (CWE)

CWE-74

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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