Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2017-9841

CVE-2017-9841CRITICAL

n/a n/a — PHPUnit PHPUnit

  AV  AC  PR  UI  S  C  I  A   CVSS     EPSS    %ile   KEV
   N   L   N   N  U  H  H  H    9.8   1.0000   100.0   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Jun 24  Reserved by mitre
  Jun 27  Published (CNA: mitre)
  Feb 15  Added to CISA KEV, remediation due 2022-08-15

CWE-94 · CNA: mitre · CVSS v3.1 · 8 references · KEV due August 15, 2022

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 24, 2017	Reserved	Reserved by mitre
June 27, 2017	Published	Published (CNA: mitre)
February 15, 2022	KEV ADDED	Added to CISA KEV, remediation due 2022-08-15

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-94

References (8)

http://web.archive.org/web/20170701212357/http://phpunit.vulnbusters.com/ [x_refsource_MISC]
http://www.securityfocus.com/bid/101798 [vdb-entry, x_refsource_BID]
http://www.securitytracker.com/id/1039812 [vdb-entry, x_refsource_SECTRACK]
https://github.com/sebastianbergmann/phpunit/commit/284a69fb88a2d0845d23f42974a583d8f59bf5a5 [x_refsource_MISC]
https://github.com/sebastianbergmann/phpunit/pull/1956 [x_refsource_MISC]
https://security.gentoo.org/glsa/201711-15 [vendor-advisory, x_refsource_GENTOO]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9841 [government-resource]
https://www.oracle.com/security-alerts/cpuoct2021.html [x_refsource_MISC]

Authoritative record: CVE-2017-9841 at cve.org

Weaknesses: CWE-94

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-9841 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.