HOMEVULNERABILITIESCVE-2017-7321
CRITICAL

CVE-2017-7321

CWE-94Published: March 30, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2017-7321 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

modx1 product(s)
modx revolution
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/97228
ADVISORYhttps://mazinahmed.net/services/public-reports/ModX%20-%20Responsible%20Disclosure%20-%20January%202017.pdf
ADVISORYhttp://www.securityfocus.com/bid/97228
ADVISORYhttps://mazinahmed.net/services/public-reports/ModX%20-%20Responsible%20Disclosure%20-%20January%202017.pdf

All References (4)

→
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

Quick Facts

CVE IDCVE-2017-7321
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-94
CISA KEVNo
Affected1 vendor(s)
PublishedMar 30, 2017

Related CVEs (CWE-94)

CVE-2023-2583
10.0
CVE-2014-3804
10.0
CVE-2026-61447
10.0
CVE-2018-4031
10.0
CVE-2024-32599
10.0
CVE-2014-5210
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-7321 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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