How severe is CVE-2017-6090?

CVE-2017-6090 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-2017-6090 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 96% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-6090?

CVE-2017-6090 affects Phpcollab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-6090?

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-2017-6090 published?

CVE-2017-6090 was published on 2017-10-03 and last updated on 2026-06-17.

CVE-2017-6090

CVE-2017-6090 is a high-severity vulnerability in Phpcollab with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 96% places it in the 100th percentile, indicating an elevated likelihood of exploitation. 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: 96% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Phpcollab
Published: 2017-10-03
Last modified: 2026-06-17

Description

Unrestricted file upload vulnerability in clients/editclient.php in PhpCollab 2.5.1 and earlier allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in logos_clients/.

Frequently asked questions

What is CVE-2017-6090?: Unrestricted file upload vulnerability in clients/editclient.php in PhpCollab 2.5.1 and earlier allows remote authenticated users to execute arbitrary code by uploading a file with an executable extension, then accessing it via a direct request to the file in logos_clients/.
How severe is CVE-2017-6090?: CVE-2017-6090 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-2017-6090 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 96% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-6090?: CVE-2017-6090 affects Phpcollab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-6090?: 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-2017-6090 published?: CVE-2017-6090 was published on 2017-10-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpcollab:phpcollab:*:*:*:*:*:*:*:*

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