CVE-2017-6090

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because EPSS predicts 96% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs). NVD baseline CVSS 8.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction (continuous uplift above 30%)
Sources: epss, ghsa, nvd
Weaponized
9.0EG
EchelonGraph verdictMitigate this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 96%
  • Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 96%CVSS: 8.8Exploit: Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

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

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
9.0CRITICALhigh confidence
EG Risk
84
EG Risk 84/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation96% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
96%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

October 3, 2017

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated May 22, 2026
🔬 Proof of concept available. No fix on record 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/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 1× in last 7d / 7× 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. 2026-10-07 23:24 UTCOSV refresh
  2. 2026-09-30 14:59 UTCEPSS rescore
  3. 2026-09-30 09:35 UTCEG score recompute
  4. 2026-09-26 15:53 UTCEPSS rescore
  5. 2026-09-18 05:20 UTCOSV refresh
  6. 2026-09-17 19:22 UTCEPSS rescore
  7. 2026-09-11 09:31 UTCEPSS rescore
  8. 2026-09-06 13:43 UTCEPSS rescore
  9. 2026-09-05 15:23 UTCEPSS rescore
  10. 2026-09-01 03:31 UTCEPSS rescore
  11. 2026-08-30 19:13 UTCEPSS rescore
  12. 2026-08-30 05:48 UTCOSV refresh
  13. 2026-08-27 14:21 UTCEPSS rescore
  14. 2026-08-20 22:51 UTCEPSS rescore
  15. 2026-08-16 02:10 UTCEPSS rescore
  16. 2026-08-15 01:26 UTCEPSS rescore
  17. 2026-08-13 21:21 UTCOSV refresh
  18. 2026-08-12 13:46 UTCEPSS rescore
  19. 2026-08-02 02:23 UTCEPSS rescore
  20. 2026-07-29 00:21 UTCOSV refresh
  21. 2026-07-23 01:30 UTCEG score recompute
  22. 2026-07-22 22:09 UTCEG score recompute
  23. 2026-07-21 15:21 UTCEPSS rescore
  24. 2026-07-21 15:21 UTCEPSS rescore
  25. 2026-07-11 17:11 UTCOSV refresh
Show 36 more
  1. 2026-07-08 15:10 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-06 16:24 UTCEPSS rescore
  4. 2026-07-02 16:54 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
  7. 2026-06-28 04:53 UTCEPSS rescore
  8. 2026-06-24 14:02 UTCEPSS rescore
  9. 2026-06-24 14:02 UTCEPSS rescore
  10. 2026-06-23 21:30 UTCEPSS rescore
  11. 2026-06-22 23:30 UTCOSV refresh
  12. 2026-06-17 17:50 UTCEPSS rescore
  13. 2026-06-15 17:45 UTCEPSS rescore
  14. 2026-06-13 22:57 UTCEPSS rescore
  15. 2026-06-12 23:09 UTCEPSS rescore
  16. 2026-06-10 22:15 UTCEPSS rescore
  17. 2026-06-10 13:19 UTCEPSS rescore
  18. 2026-06-05 22:44 UTCEPSS rescore
  19. 2026-06-05 17:27 UTCOSV refresh
  20. 2026-06-02 20:11 UTCEPSS rescore
  21. 2026-06-02 20:11 UTCEPSS rescore
  22. 2026-05-31 22:28 UTCEPSS rescore
  23. 2026-05-31 22:28 UTCEPSS rescore
  24. 2026-05-29 13:41 UTCEPSS rescore
  25. 2026-05-28 13:42 UTCEPSS rescore
  26. 2026-05-28 13:42 UTCEPSS rescore
  27. 2026-05-27 13:38 UTCEPSS rescore
  28. 2026-05-27 13:38 UTCEPSS rescore
  29. 2026-05-22 21:15 UTCEPSS rescore
  30. 2026-05-22 21:15 UTCEPSS rescore
  31. 2026-05-22 21:15 UTCEPSS rescore
  32. 2026-05-22 21:15 UTCEPSS rescore
  33. 2026-05-22 21:15 UTCEPSS rescore
  34. 2026-05-22 09:20 UTCEG score recompute
  35. 2026-05-22 09:20 UTCGHSA enrichment
  36. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(4 references)

Public exploit code is referenced for this CVE (1 Metasploit module, 2 Exploit-DB entries), as is 1 Nuclei detection template. A detection template checks whether a system is affected; it is not necessarily exploit code. Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-43519✓ verified
    Published Jan 11, 2018

    phpCollab 2.5.1 - File Upload (Metasploit)

    Open source ↗
  • Metasploitexploit/unix/webapp/phpcollab_upload_exec✓ verified
    Published Jan 10, 2018

    phpCollab 2.5.1 Unauthenticated File Upload

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

    phpCollab 2.5.1 - Arbitrary File Upload

    Open source ↗
  • Nucleihttp/cves/2017/CVE-2017-6090.yaml
    Published Jul 27, 2021

    PhpColl 2.5.1 Arbitrary File Upload

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2017-6090?
CVE-2017-6090 is a critical 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 on October 3, 2017, with the most recent update on June 17, 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. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 96% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
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 (CRITICAL).
How do I remediate CVE-2017-6090?
No fix for CVE-2017-6090 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2017-6090

Explore →

Is Your Infrastructure Affected by CVE-2017-6090?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs