CVE-2017-6090

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 87% probability of exploitation within the next 30 days (top 0.6% of all CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
8.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 96%
CISA-KEV: Not listedEPSS: 96%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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/.

CVSS v3
8.8
EG Score
9.0(high)
EPSS
99.9%
KEV
Not listed

Published

October 3, 2017

Last Modified

May 13, 2026

Advisory Details (3)

Auto-updated May 22, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

phpCollab 2.5.1 - File Upload (Metasploit) - PHP remote Exploit

https://www.exploit-db.com/exploits/43519/
generic🟡 PoC Available

phpCollab 2.5.1 - Arbitrary File Upload - PHP webapps Exploit

https://www.exploit-db.com/exploits/42934/
generic🟡 PoC Available

[CVE-2017-6090] PhpCollab 2.5.1 Arbitrary File Upload (unauthenticated) - Audit et formations en sécurité informatique

https://sysdream.com/news/lab/2017-09-29-cve-2017-6090-phpcollab-2-5-1-arbitrary-file-upload-unauthenticated/

Data Freshness Timeline

(refreshed 5× in last 7d / 16× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:24 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-02 16:54 UTCEPSS rescore
  4. 2026-06-30 23:19 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-28 04:53 UTCEPSS rescore
  7. 2026-06-24 14:02 UTCEPSS rescore
  8. 2026-06-24 14:02 UTCEPSS rescore
  9. 2026-06-23 21:30 UTCEPSS rescore
  10. 2026-06-22 23:30 UTCOSV refresh
  11. 2026-06-17 17:50 UTCEPSS rescore
  12. 2026-06-15 17:45 UTCEPSS rescore
  13. 2026-06-13 22:57 UTCEPSS rescore
  14. 2026-06-12 23:09 UTCEPSS rescore
  15. 2026-06-10 22:15 UTCEPSS rescore
  16. 2026-06-10 13:19 UTCEPSS rescore
  17. 2026-06-05 22:44 UTCEPSS rescore
  18. 2026-06-05 17:27 UTCOSV refresh
  19. 2026-06-02 20:11 UTCEPSS rescore
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-05-31 22:28 UTCEPSS rescore
  22. 2026-05-31 22:28 UTCEPSS rescore
  23. 2026-05-29 13:41 UTCEPSS rescore
  24. 2026-05-28 13:42 UTCEPSS rescore
  25. 2026-05-28 13:42 UTCEPSS rescore
Show 10 more
  1. 2026-05-27 13:38 UTCEPSS rescore
  2. 2026-05-27 13:38 UTCEPSS rescore
  3. 2026-05-22 21:15 UTCEPSS rescore
  4. 2026-05-22 21:15 UTCEPSS rescore
  5. 2026-05-22 21:15 UTCEPSS rescore
  6. 2026-05-22 21:15 UTCEPSS rescore
  7. 2026-05-22 21:15 UTCEPSS rescore
  8. 2026-05-22 09:20 UTCEG score recompute
  9. 2026-05-22 09:20 UTCGHSA enrichment
  10. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-43519✓ verified
    First seen Jan 11, 2018

    phpCollab 2.5.1 - File Upload (Metasploit)

    Open source ↗
  • Exploit-DBEDB-42934✓ verified
    First seen Oct 2, 2017

    phpCollab 2.5.1 - Arbitrary File Upload

    Open source ↗
  • Metasploitexploit/unix/webapp/phpcollab_upload_exec✓ verified
    First seen Sep 29, 2017

    phpCollab 2.5.1 Unauthenticated File Upload

    Open source ↗
  • Nucleihttp/cves/2017/CVE-2017-6090.yaml
    First seen Jan 1, 2017

    PhpColl 2.5.1 Arbitrary File Upload

    Open source ↗

Frequently asked(5)

What is CVE-2017-6090?
CVE-2017-6090 is a high vulnerability published on October 3, 2017. 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/.
When was CVE-2017-6090 disclosed?
CVE-2017-6090 was first published in the National Vulnerability Database on October 3, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-6090 actively exploited?
CVE-2017-6090 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-6090?
CVE-2017-6090 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
How do I remediate CVE-2017-6090?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-6090, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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