CVE-2017-9841
CRITICALCISA KEVEPSS 100th pctlDescription
Util/PHP/eval-stdin.php in PHPUnit before 4.8.28 and 5.x before 5.6.3 allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a "<?php " substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
PHPUnit Command Injection Vulnerability
PHPUnit allows remote attackers to execute arbitrary PHP code via HTTP POST data beginning with a "<?php " substring, as demonstrated by an attack on a site with an exposed /vendor folder, i.e., external access to the /vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php URI.
Apply updates per vendor instructions.
Remediation due: 2022-08-15
References
- http://web.archive.org/web/20170701212357/http://phpunit.vulnbusters.com/
- http://www.securityfocus.com/bid/101798
- http://www.securitytracker.com/id/1039812
- https://github.com/sebastianbergmann/phpunit/commit/284a69fb88a2d0845d23f42974a583d8f59bf5a5
- https://github.com/sebastianbergmann/phpunit/pull/1956
- https://security.gentoo.org/glsa/201711-15
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9841
Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.