install/index.php in Exponent CMS 2.3.9 allows remote attackers to execute arbitrary commands via shell metacharacters in the sc array parameter.
https://github.com/exponentcms/exponent-cms/commit/4ae457ff1bf80e8b61286cd125ca794b25564e86
http://www.openwall.com/lists/oss-security/2016/09/22/6
https://github.com/exponentcms/exponent-cms/releases/tag/v2.4.0
https://exponentcms.lighthouseapp.com/projects/61783/changesets/4ae457ff1bf80e8b61286cd125ca794b25564e86
Source: Mitre, NVD
Published: 2017-02-13
Updated: 2026-06-17
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
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: 0.01513