Vulnerability in Composer
CVE-2023-43655
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 `reg…
EPSS: 0.014 (68.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Composer — versions 2.6.4, 2.2.21, 1.10.27, >= 2.0, < 2.2.22, < 1.10.27
- Getcomposer Composer
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 37, 38
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- security-advisories@github.com (Mailing List)
Frequently asked questions
- What is CVE-2023-43655?
- CVE-2023-43655 is a medium-severity vulnerability in Composer, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.4/10. Published 2023-09-29.
- How severe is CVE-2023-43655?
- Medium severity. CVSS v3 base score is 6.4 out of 10.
- Is CVE-2023-43655 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.