CVE-2017-9841

critical

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.

From the Tenable Blog

CVE-2017-9841: Drupal Sites Exploited Using PHPUnit Vulnerability in Mailchimp Modules (PSA-2019-0904)
CVE-2017-9841: Drupal Sites Exploited Using PHPUnit Vulnerability in Mailchimp Modules (PSA-2019-0904)

Published: 2019-09-05

Attackers are leveraging a vulnerability patched nearly three years ago to target Drupal sites. Background On September 4, Drupal published PSA-2019-09-04, a public service announcement (PSA) for a vulnerability in a third-party library in a Drupal module that’s being actively exploited in the wild.

References

Details

Source: Mitre, NVD

Published: 2017-06-27

Updated: 2025-04-20

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.94406