CVE-2017-7321

Name: CVE-2017-7321
Creator: NVD / NIST
Published: 2017-03-30T07:59:00.393+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.15%

Last modified Jun 17, 2026

CVE-2017-7321 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. setup/controllers/welcome.php in MODX Revolution 2.5.4-pl and earlier allows remote attackers to execute arbitrary PHP code via the config_key parameter to the setup/index.php?action=welcome URI.. EPSS estimates a 2.15% chance of exploitation in the next 30 days.

Description

setup/controllers/welcome.php in MODX Revolution 2.5.4-pl and earlier allows remote attackers to execute arbitrary PHP code via the config_key parameter to the setup/index.php?action=welcome URI.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.15%

79.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Modx	Modx Revolution	<= 2.5.4

References

http://www.securityfocus.com/bid/97228Third Party Advisory, VDB Entry
https://mazinahmed.net/services/public-reports/ModX%20-%20Responsible%20Disclosure%20-%20January%202017.pdfExploit, Technical Description, Third Party Advisory
http://www.securityfocus.com/bid/97228Third Party Advisory, VDB Entry
https://mazinahmed.net/services/public-reports/ModX%20-%20Responsible%20Disclosure%20-%20January%202017.pdfExploit, Technical Description, Third Party Advisory

Timeline

Published: Mar 30, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7321?

setup/controllers/welcome.php in MODX Revolution 2.5.4-pl and earlier allows remote attackers to execute arbitrary PHP code via the config_key parameter to the setup/index.php?action=welcome URI.

How severe is CVE-2017-7321?

CVE-2017-7321 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.15% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7321?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7321?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST