CVE-2026-73693

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-10. The CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.7%CVSS: 8.8Exploit: None knownExposed services: Not assessed

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

FileRun before 2026.3.0 contains an OS command injection vulnerability in the PhotoProofSheet handler that allows authenticated users with upload permission to execute arbitrary commands by uploading files with shell metacharacters in their names. Attackers can upload a file containing command substitution syntax such as backticks, semicolons, or $() sequences in the filename, then trigger the PhotoProofSheet endpoint to execute arbitrary commands as the web-server user due to missing escapeshellarg() sanitization in the ImageMagick montage command construction.

CVSS v3
8.8
EG Score
8.8HIGHhigh confidence
EG Risk
41
EG Risk 41/100CISA 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
Severity88% × 45%
Exploitation3% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* 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, and watch the vendor's advisory for the fix.
EPSS PROB
2.7%
EPSS %ILE
85th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* 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, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). 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

September 10, 2026

Last Modified

October 1, 2026

Advisory Details (2)

Auto-updated Sep 10, 2026
No patch confirmed yet.
generic

FileRun < 2026.3.0 OS Command Injection via PhotoProofSheet Handler | Advisories | VulnCheck

https://www.vulncheck.com/advisories/filerun-os-command-injection-via-photoproofsheet-handler
generic

FileRun — Self-hosted File Sync and Share

https://filerun.com/index.php/changelog?v=2026.3.0

Vendor Advisories for CVE-2026-73693(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 98× 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. 2026-10-05 01:11 UTCEG score recompute
  2. 2026-10-05 01:11 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 13:16 UTCGHSA enrichment
  5. 2026-10-04 01:42 UTCEG score recompute
  6. 2026-10-04 01:42 UTCGHSA enrichment
  7. 2026-10-03 14:26 UTCEPSS rescore
  8. 2026-10-03 14:08 UTCGHSA enrichment
  9. 2026-10-03 02:34 UTCEG score recompute
  10. 2026-10-03 02:34 UTCGHSA enrichment
  11. 2026-10-02 15:01 UTCGHSA enrichment
  12. 2026-10-02 03:27 UTCEG score recompute
  13. 2026-10-02 03:27 UTCGHSA enrichment
  14. 2026-10-01 19:50 UTCEPSS rescore
  15. 2026-10-01 15:27 UTCEG score recompute
  16. 2026-10-01 15:26 UTCGHSA enrichment
  17. 2026-10-01 13:05 UTCGHSA enrichment
  18. 2026-10-01 01:32 UTCEG score recompute
  19. 2026-10-01 01:32 UTCGHSA enrichment
  20. 2026-09-30 13:59 UTCGHSA enrichment
  21. 2026-09-30 01:55 UTCEG score recompute
  22. 2026-09-30 01:55 UTCGHSA enrichment
  23. 2026-09-29 15:24 UTCEPSS rescore
  24. 2026-09-29 06:38 UTCEG score recompute
  25. 2026-09-29 06:38 UTCGHSA enrichment
Show 73 more
  1. 2026-09-28 19:04 UTCEG score recompute
  2. 2026-09-28 19:04 UTCGHSA enrichment
  3. 2026-09-28 13:52 UTCEPSS rescore
  4. 2026-09-28 07:31 UTCGHSA enrichment
  5. 2026-09-27 19:57 UTCEG score recompute
  6. 2026-09-27 19:57 UTCGHSA enrichment
  7. 2026-09-27 13:48 UTCEPSS rescore
  8. 2026-09-27 08:24 UTCGHSA enrichment
  9. 2026-09-26 20:50 UTCEG score recompute
  10. 2026-09-26 20:50 UTCGHSA enrichment
  11. 2026-09-26 15:59 UTCEPSS rescore
  12. 2026-09-26 09:13 UTCEG score recompute
  13. 2026-09-26 09:13 UTCGHSA enrichment
  14. 2026-09-25 21:21 UTCGHSA enrichment
  15. 2026-09-25 07:25 UTCGHSA enrichment
  16. 2026-09-24 19:52 UTCEG score recompute
  17. 2026-09-24 19:52 UTCGHSA enrichment
  18. 2026-09-24 08:19 UTCGHSA enrichment
  19. 2026-09-23 20:46 UTCEG score recompute
  20. 2026-09-23 20:46 UTCGHSA enrichment
  21. 2026-09-23 17:54 UTCEPSS rescore
  22. 2026-09-23 09:12 UTCGHSA enrichment
  23. 2026-09-22 21:39 UTCEG score recompute
  24. 2026-09-22 21:39 UTCGHSA enrichment
  25. 2026-09-22 10:06 UTCGHSA enrichment
  26. 2026-09-21 22:33 UTCEG score recompute
  27. 2026-09-21 22:32 UTCGHSA enrichment
  28. 2026-09-21 21:09 UTCEPSS rescore
  29. 2026-09-21 10:59 UTCGHSA enrichment
  30. 2026-09-20 23:26 UTCEG score recompute
  31. 2026-09-20 23:26 UTCGHSA enrichment
  32. 2026-09-20 20:16 UTCEPSS rescore
  33. 2026-09-20 11:52 UTCGHSA enrichment
  34. 2026-09-19 23:49 UTCEG score recompute
  35. 2026-09-19 23:49 UTCGHSA enrichment
  36. 2026-09-19 12:16 UTCGHSA enrichment
  37. 2026-09-19 00:43 UTCEG score recompute
  38. 2026-09-19 00:43 UTCGHSA enrichment
  39. 2026-09-18 19:28 UTCEPSS rescore
  40. 2026-09-18 13:09 UTCGHSA enrichment
  41. 2026-09-18 01:36 UTCEG score recompute
  42. 2026-09-18 01:36 UTCGHSA enrichment
  43. 2026-09-17 14:03 UTCGHSA enrichment
  44. 2026-09-17 02:29 UTCGHSA enrichment
  45. 2026-09-16 14:52 UTCEG score recompute
  46. 2026-09-16 14:52 UTCGHSA enrichment
  47. 2026-09-16 14:08 UTCEPSS rescore
  48. 2026-09-16 05:15 UTCEPSS rescore
  49. 2026-09-16 03:13 UTCGHSA enrichment
  50. 2026-09-15 15:39 UTCGHSA enrichment
  51. 2026-09-15 04:05 UTCEG score recompute
  52. 2026-09-15 04:05 UTCGHSA enrichment
  53. 2026-09-15 03:12 UTCEPSS rescore
  54. 2026-09-14 16:32 UTCGHSA enrichment
  55. 2026-09-14 04:59 UTCGHSA enrichment
  56. 2026-09-13 17:26 UTCEG score recompute
  57. 2026-09-13 17:26 UTCGHSA enrichment
  58. 2026-09-13 05:52 UTCGHSA enrichment
  59. 2026-09-12 18:19 UTCEG score recompute
  60. 2026-09-12 18:19 UTCGHSA enrichment
  61. 2026-09-12 15:02 UTCEPSS rescore
  62. 2026-09-12 06:45 UTCGHSA enrichment
  63. 2026-09-11 19:11 UTCEG score recompute
  64. 2026-09-11 19:11 UTCGHSA enrichment
  65. 2026-09-11 14:53 UTCEPSS rescore
  66. 2026-09-11 07:36 UTCGHSA enrichment
  67. 2026-09-10 20:03 UTCEG score recompute
  68. 2026-09-10 20:02 UTCGHSA enrichment
  69. 2026-09-10 18:22 UTCEG score recompute
  70. 2026-09-10 17:30 UTCEG score recompute
  71. 2026-09-10 17:19 UTCEG score recompute
  72. 2026-09-10 16:35 UTCEG score recompute
  73. 2026-09-10 16:34 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73693?
CVE-2026-73693 is a high vulnerability published on September 10, 2026. FileRun before 2026.3.0 contains an OS command injection vulnerability in the PhotoProofSheet handler that allows authenticated users with upload permission to execute arbitrary commands by uploading files with shell metacharacters in their names. Attackers can upload a file containing command…
When was CVE-2026-73693 disclosed?
CVE-2026-73693 was first published on September 10, 2026, with the most recent update on October 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73693 actively exploited?
CVE-2026-73693 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.7% probability of exploitation in the next 30 days (85th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73693?
CVE-2026-73693 has a CVSS base score of 8.8 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-73693?
No fix for CVE-2026-73693 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. The vendor advisories EchelonGraph has for CVE-2026-73693 are linked in the Vendor Advisories panel on this page.

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