How severe is CVE-2017-5520?

CVE-2017-5520 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-5520 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5520?

CVE-2017-5520 affects Metalgenix Genixcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-5520?

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

When was CVE-2017-5520 published?

CVE-2017-5520 was published on 2017-01-17 and last updated on 2026-06-17.

CVE-2017-5520

CVE-2017-5520 is a high-severity vulnerability in Metalgenix Genixcms with a CVSS 3.x base score of 8.8. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Metalgenix Genixcms
Published: 2017-01-17
Last modified: 2026-06-17

Description

The media rename feature in GeniXCMS through 0.0.8 does not consider alternative PHP file extensions when checking uploaded files for PHP content, which enables a user to rename and execute files with the `.php6`, `.php7` and `.phtml` extensions.

Frequently asked questions

What is CVE-2017-5520?: The media rename feature in GeniXCMS through 0.0.8 does not consider alternative PHP file extensions when checking uploaded files for PHP content, which enables a user to rename and execute files with the `.php6`, `.php7` and `.phtml` extensions.
How severe is CVE-2017-5520?: CVE-2017-5520 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-5520 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5520?: CVE-2017-5520 affects Metalgenix Genixcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-5520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-5520 published?: CVE-2017-5520 was published on 2017-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:metalgenix:genixcms:*:*:*:*:*:*:*:*

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