CVE-2017-17560

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-14. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 73%
CISA-KEV: Not listedEPSS: 73%CVSS: 9.8Exploit: NoneExposed: 0

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

An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices. The web administration component, /web/jquery/uploader/multi_uploadify.php, provides multipart upload functionality that is accessible without authentication and can be used to place a file anywhere on the device's file system. This allows an attacker the ability to upload a PHP shell onto the device and obtain arbitrary code execution as root.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
99.4%
KEV
Not listed

Published

December 12, 2017

Last Modified

May 13, 2026

Advisory Details (2)

Auto-updated Jun 21, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic🟡 PoC Available

Western Digital MyCloud - 'multi_uploadify' File Upload (Metasploit) - PHP remote Exploit

https://www.exploit-db.com/exploits/43356/
github_pr

Add wd_mycloud_multiupload_upload exploit

Fix merged in rapid7/metasploit-framework PR #9248 on 2017-12-14 — awaiting tagged release

https://github.com/rapid7/metasploit-framework/pull/9248

Data Freshness Timeline

(refreshed 5× in last 7d / 20× 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. 2026-07-05 02:27 UTCEPSS rescore
  2. 2026-07-01 15:02 UTCEPSS rescore
  3. 2026-07-01 15:02 UTCEPSS rescore
  4. 2026-06-30 23:19 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-28 14:04 UTCEPSS rescore
  7. 2026-06-27 03:05 UTCEPSS rescore
  8. 2026-06-25 13:47 UTCEPSS rescore
  9. 2026-06-25 13:47 UTCEPSS rescore
  10. 2026-06-24 14:02 UTCEPSS rescore
  11. 2026-06-23 21:30 UTCEPSS rescore
  12. 2026-06-19 19:23 UTCEPSS rescore
  13. 2026-06-19 19:23 UTCEPSS rescore
  14. 2026-06-17 17:50 UTCEPSS rescore
  15. 2026-06-16 17:50 UTCEPSS rescore
  16. 2026-06-15 17:45 UTCEPSS rescore
  17. 2026-06-14 23:14 UTCEPSS rescore
  18. 2026-06-14 23:14 UTCEPSS rescore
  19. 2026-06-12 23:09 UTCEPSS rescore
  20. 2026-06-10 22:15 UTCEPSS rescore
  21. 2026-06-05 22:44 UTCEPSS rescore
  22. 2026-06-05 06:08 UTCEPSS rescore
  23. 2026-06-05 06:08 UTCEPSS rescore
  24. 2026-05-31 00:14 UTCEPSS rescore
  25. 2026-05-28 13:42 UTCEPSS rescore
Show 29 more
  1. 2026-05-28 13:42 UTCEPSS rescore
  2. 2026-05-27 13:38 UTCEPSS rescore
  3. 2026-05-27 13:38 UTCEPSS rescore
  4. 2026-05-26 07:17 UTCEPSS rescore
  5. 2026-05-26 07:17 UTCEPSS rescore
  6. 2026-05-22 21:15 UTCEPSS rescore
  7. 2026-05-22 21:15 UTCEPSS rescore
  8. 2026-05-22 21:15 UTCEPSS rescore
  9. 2026-05-20 22:37 UTCEPSS rescore
  10. 2026-05-20 22:37 UTCEPSS rescore
  11. 2026-05-20 09:57 UTCEG score recompute
  12. 2026-05-20 09:57 UTCGHSA enrichment
  13. 2026-05-20 05:38 UTCEG score recompute
  14. 2026-05-20 05:38 UTCGHSA enrichment
  15. 2026-05-20 01:19 UTCEG score recompute
  16. 2026-05-20 01:19 UTCGHSA enrichment
  17. 2026-05-19 21:00 UTCEG score recompute
  18. 2026-05-19 21:00 UTCGHSA enrichment
  19. 2026-05-19 16:41 UTCEG score recompute
  20. 2026-05-19 16:41 UTCGHSA enrichment
  21. 2026-05-19 12:22 UTCEG score recompute
  22. 2026-05-19 12:22 UTCGHSA enrichment
  23. 2026-05-19 08:03 UTCEG score recompute
  24. 2026-05-19 08:03 UTCGHSA enrichment
  25. 2026-05-19 03:44 UTCEG score recompute
  26. 2026-05-19 03:44 UTCGHSA enrichment
  27. 2026-05-18 23:26 UTCEG score recompute
  28. 2026-05-18 21:30 UTCEPSS rescore
  29. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(2 references)

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

  • Exploit-DBEDB-43356✓ verified
    First seen Dec 18, 2017

    Western Digital MyCloud - 'multi_uploadify' File Upload (Metasploit)

    Open source ↗
  • Metasploitexploit/linux/http/wd_mycloud_multiupload_upload✓ verified
    First seen Jul 29, 2017

    Western Digital MyCloud multi_uploadify File Upload Vulnerability

    Open source ↗

Frequently asked(5)

What is CVE-2017-17560?
CVE-2017-17560 is a critical vulnerability published on December 12, 2017. An issue was discovered on Western Digital MyCloud PR4100 2.30.172 devices. The web administration component, /web/jquery/uploader/multi_uploadify.php, provides multipart upload functionality that is accessible without authentication and can be used to place a file anywhere on the device's file…
When was CVE-2017-17560 disclosed?
CVE-2017-17560 was first published in the National Vulnerability Database on December 12, 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-2017-17560 actively exploited?
CVE-2017-17560 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-17560?
CVE-2017-17560 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-17560?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-17560, 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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