CVE-2017-15580

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
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 16%CVSS: 9.8Exploit: NoneExposed: 0

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

osTicket 1.10.1 provides a functionality to upload 'html' files with associated formats. However, it does not properly validate the uploaded file's contents and thus accepts any type of file, such as with a tickets.php request that is modified with a .html extension changed to a .exe extension. An attacker can leverage this vulnerability to upload arbitrary files on the web application having malicious content.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
96.5%
KEV
Not listed

Published

October 23, 2017

Last Modified

May 13, 2026

Advisory Details (4)

Auto-updated Jun 24, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Become P3NTESTER: File Upload Restrictions Bypassed - osTicket v1.10.1 - [ CVE-2017-15580 ]

https://becomepentester.blogspot.com/2017/10/osTicket-File-Upload-Restrictions-Bypassed-CVE-2017-15580.html
generic

Packet Storm

https://packetstormsecurity.com/files/144747/osticket1101-shell.txt
generic🟡 PoC Available

osTicket 1.10.1 Shell Upload - CXSecurity.com

https://cxsecurity.com/issue/WLB-2017100187
generic🟡 PoC Available

osTicket 1.10.1 - Arbitrary File Upload - Windows webapps Exploit

https://www.exploit-db.com/exploits/45169/

Data Freshness Timeline

(refreshed 7× in last 7d / 32× 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. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-06 16:24 UTCEPSS rescore
  3. 2026-07-05 02:27 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
  7. 2026-06-30 23:19 UTCEPSS rescore
  8. 2026-06-29 14:03 UTCEPSS rescore
  9. 2026-06-28 14:04 UTCEPSS rescore
  10. 2026-06-28 04:53 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:47 UTCEPSS rescore
  13. 2026-06-25 13:47 UTCEPSS rescore
  14. 2026-06-24 14:02 UTCEPSS rescore
  15. 2026-06-23 21:30 UTCEPSS rescore
  16. 2026-06-21 14:54 UTCEPSS rescore
  17. 2026-06-21 14:54 UTCEPSS rescore
  18. 2026-06-21 01:57 UTCEPSS rescore
  19. 2026-06-21 01:57 UTCEPSS rescore
  20. 2026-06-19 11:25 UTCOSV refresh
  21. 2026-06-18 17:50 UTCEPSS rescore
  22. 2026-06-17 17:50 UTCEPSS rescore
  23. 2026-06-16 17:50 UTCEPSS rescore
  24. 2026-06-15 17:45 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
Show 54 more
  1. 2026-06-14 23:14 UTCEPSS rescore
  2. 2026-06-13 22:57 UTCEPSS rescore
  3. 2026-06-12 23:09 UTCEPSS rescore
  4. 2026-06-11 13:57 UTCEPSS rescore
  5. 2026-06-10 22:15 UTCEPSS rescore
  6. 2026-06-07 15:22 UTCEPSS rescore
  7. 2026-06-07 15:22 UTCEPSS rescore
  8. 2026-06-06 13:45 UTCEPSS rescore
  9. 2026-06-06 13:45 UTCEPSS rescore
  10. 2026-06-05 22:44 UTCEPSS rescore
  11. 2026-06-05 06:08 UTCEPSS rescore
  12. 2026-06-05 06:08 UTCEPSS rescore
  13. 2026-06-04 13:10 UTCEPSS rescore
  14. 2026-06-04 13:10 UTCEPSS rescore
  15. 2026-06-02 20:11 UTCEPSS rescore
  16. 2026-06-02 20:11 UTCEPSS rescore
  17. 2026-06-01 13:49 UTCEPSS rescore
  18. 2026-06-01 13:49 UTCEPSS rescore
  19. 2026-05-31 22:28 UTCEPSS rescore
  20. 2026-05-31 00:14 UTCEPSS rescore
  21. 2026-05-30 19:53 UTCOSV refresh
  22. 2026-05-29 13:41 UTCEPSS rescore
  23. 2026-05-28 13:42 UTCEPSS rescore
  24. 2026-05-28 13:42 UTCEPSS rescore
  25. 2026-05-27 13:38 UTCEPSS rescore
  26. 2026-05-27 13:38 UTCEPSS rescore
  27. 2026-05-26 07:17 UTCEPSS rescore
  28. 2026-05-26 07:17 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. 2026-05-20 22:37 UTCEPSS rescore
  33. 2026-05-20 22:37 UTCEPSS rescore
  34. 2026-05-20 11:21 UTCEPSS rescore
  35. 2026-05-20 11:21 UTCEPSS rescore
  36. 2026-05-20 08:04 UTCEG score recompute
  37. 2026-05-20 08:04 UTCGHSA enrichment
  38. 2026-05-20 03:56 UTCEG score recompute
  39. 2026-05-20 03:56 UTCGHSA enrichment
  40. 2026-05-19 23:48 UTCEG score recompute
  41. 2026-05-19 23:48 UTCGHSA enrichment
  42. 2026-05-19 19:40 UTCEG score recompute
  43. 2026-05-19 19:40 UTCGHSA enrichment
  44. 2026-05-19 15:32 UTCEG score recompute
  45. 2026-05-19 15:32 UTCGHSA enrichment
  46. 2026-05-19 11:24 UTCEG score recompute
  47. 2026-05-19 11:24 UTCGHSA enrichment
  48. 2026-05-19 07:13 UTCEG score recompute
  49. 2026-05-19 07:13 UTCGHSA enrichment
  50. 2026-05-19 03:05 UTCEG score recompute
  51. 2026-05-19 03:05 UTCGHSA enrichment
  52. 2026-05-18 22:53 UTCEG score recompute
  53. 2026-05-18 21:30 UTCEPSS rescore
  54. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • Exploit-DBEDB-45169
    First seen Aug 8, 2018

    osTicket 1.10.1 - Arbitrary File Upload

    Open source ↗

Frequently asked(5)

What is CVE-2017-15580?
CVE-2017-15580 is a critical vulnerability published on October 23, 2017. osTicket 1.10.1 provides a functionality to upload 'html' files with associated formats. However, it does not properly validate the uploaded file's contents and thus accepts any type of file, such as with a tickets.php request that is modified with a .html extension changed to a .exe extension. An…
When was CVE-2017-15580 disclosed?
CVE-2017-15580 was first published in the National Vulnerability Database on October 23, 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-2017-15580 actively exploited?
CVE-2017-15580 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 96.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-15580?
CVE-2017-15580 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-15580?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-15580, 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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