How severe is CVE-2017-7321?

CVE-2017-7321 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-7321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-7321?

CVE-2017-7321 affects Modx Modx Revolution. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-7321?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-7321 published?

CVE-2017-7321 was published on 2017-03-30 and last updated on 2026-06-17.

CVE-2017-7321

CVE-2017-7321 is a critical-severity vulnerability in Modx Modx Revolution with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Modx Modx Revolution
Published: 2017-03-30
Last modified: 2026-06-17

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.

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 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-7321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7321?: CVE-2017-7321 affects Modx Modx Revolution. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-7321?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-7321 published?: CVE-2017-7321 was published on 2017-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:modx:modx_revolution:*:*:*:*:*:*:*:*

More vulnerabilities in Modx Modx Revolution

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