Arbitrary file upload in Phpcollab

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/.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.964 (99.9th percentile), scored .

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-6090: rose from 0.951 to 0.964.

EPSS over last 30 days · oldest: 0.951 · newest: 0.964 · change: +0.013

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-6090?
CVE-2017-6090 is a high-severity vulnerability in Phpcollab, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2017-10-03.
How severe is CVE-2017-6090?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2017-6090 known to be exploited?
6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.