CVE-2023-436556.4MediumCWE-74

CVE-2023-43655: Remote Code Execution via web-accessible composer.phar

composer

Affected: composer · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

1.5%probability of exploitation in the next 30 days

75th percentile

050100

Higher than 75% of scored CVEs

6.4MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

composer · composer2.6.4, 2.2.21, 1.10.27; >= 2.0, < 2.2.22; < 1.10.27

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Injection · Injection and Smuggling
Vendor: composer
Published: September 2023
Band: Possible (1 to 10%), September 2023

CoverageNo articles yet

No CyberSIXT article names CVE-2023-43655 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.