CVE-2026-8753

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-05-17. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.3Exploit: NoneExposed: 0

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

A security vulnerability has been detected in kalcaddle Kodbox up to 1.64. This issue affects the function parseVideoInfo of the file /workspace/source-code/plugins/fileThumb/lib/VideoResize.class.php of the component fileThumb Plugin. The manipulation of the argument ffmpegBin leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
6.3
EG Score
6.3(medium)
EPSS
64.1%
KEV
Not listed

Published

May 17, 2026

Last Modified

May 18, 2026

Advisory Details (1)

Auto-updated May 17, 2026
No patch confirmed yet.
generic

KodBox Post‑Authentication FFmpeg Command Injection via parseVideoInfo in kodbox fileThumb Video Preview

https://vulnplus-note.wetolink.com/share/R0hHqwMywhsm

Vendor Advisories for CVE-2026-8753(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 48× 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.

Showing the most recent 100 of 105 total refreshes for this CVE.

  1. 2026-07-15 02:00 UTCEPSS rescore
  2. 2026-07-13 22:31 UTCEPSS rescore
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-12 05:46 UTCEPSS rescore
  5. 2026-07-11 08:27 UTCEPSS rescore
  6. 2026-07-09 19:10 UTCEPSS rescore
  7. 2026-07-08 15:16 UTCEPSS rescore
  8. 2026-07-07 13:46 UTCEPSS rescore
  9. 2026-07-06 16:27 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-06 02:23 UTCEPSS rescore
  13. 2026-07-05 02:31 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-01 15:07 UTCEPSS rescore
  18. 2026-06-30 23:22 UTCEPSS rescore
  19. 2026-06-29 21:13 UTCEG score recompute
  20. 2026-06-29 21:13 UTCGHSA enrichment
  21. 2026-06-29 14:06 UTCEPSS rescore
  22. 2026-06-28 14:07 UTCEPSS rescore
  23. 2026-06-28 04:56 UTCEPSS rescore
  24. 2026-06-27 21:28 UTCEG score recompute
  25. 2026-06-27 21:28 UTCGHSA enrichment
Show 75 more
  1. 2026-06-27 03:08 UTCEPSS rescore
  2. 2026-06-26 20:01 UTCEG score recompute
  3. 2026-06-26 20:00 UTCGHSA enrichment
  4. 2026-06-25 18:30 UTCEG score recompute
  5. 2026-06-25 18:30 UTCGHSA enrichment
  6. 2026-06-25 13:50 UTCEPSS rescore
  7. 2026-06-24 14:05 UTCEPSS rescore
  8. 2026-06-23 21:33 UTCEPSS rescore
  9. 2026-06-22 14:25 UTCEPSS rescore
  10. 2026-06-21 14:56 UTCEPSS rescore
  11. 2026-06-21 01:59 UTCEPSS rescore
  12. 2026-06-19 19:26 UTCEPSS rescore
  13. 2026-06-18 17:52 UTCEPSS rescore
  14. 2026-06-17 23:46 UTCEG score recompute
  15. 2026-06-17 23:46 UTCGHSA enrichment
  16. 2026-06-17 17:53 UTCEPSS rescore
  17. 2026-06-16 23:33 UTCEG score recompute
  18. 2026-06-16 23:33 UTCGHSA enrichment
  19. 2026-06-16 17:53 UTCEPSS rescore
  20. 2026-06-15 23:56 UTCEG score recompute
  21. 2026-06-15 23:56 UTCGHSA enrichment
  22. 2026-06-15 17:49 UTCEPSS rescore
  23. 2026-06-15 17:49 UTCEPSS rescore
  24. 2026-06-15 00:18 UTCEG score recompute
  25. 2026-06-15 00:18 UTCGHSA enrichment
  26. 2026-06-14 23:18 UTCEPSS rescore
  27. 2026-06-14 00:40 UTCEG score recompute
  28. 2026-06-14 00:40 UTCGHSA enrichment
  29. 2026-06-13 23:00 UTCEPSS rescore
  30. 2026-06-13 00:51 UTCEG score recompute
  31. 2026-06-13 00:51 UTCGHSA enrichment
  32. 2026-06-12 23:12 UTCEPSS rescore
  33. 2026-06-12 23:12 UTCEPSS rescore
  34. 2026-06-12 01:14 UTCEG score recompute
  35. 2026-06-12 01:14 UTCGHSA enrichment
  36. 2026-06-11 14:00 UTCEPSS rescore
  37. 2026-06-11 01:37 UTCEG score recompute
  38. 2026-06-11 01:37 UTCGHSA enrichment
  39. 2026-06-10 22:19 UTCEPSS rescore
  40. 2026-06-10 13:22 UTCEPSS rescore
  41. 2026-06-10 02:00 UTCEG score recompute
  42. 2026-06-10 02:00 UTCGHSA enrichment
  43. 2026-06-09 02:23 UTCEG score recompute
  44. 2026-06-09 02:23 UTCGHSA enrichment
  45. 2026-06-08 14:17 UTCEPSS rescore
  46. 2026-06-08 02:45 UTCEG score recompute
  47. 2026-06-08 02:45 UTCGHSA enrichment
  48. 2026-06-07 15:25 UTCEPSS rescore
  49. 2026-06-07 03:08 UTCEG score recompute
  50. 2026-06-07 03:08 UTCGHSA enrichment
  51. 2026-06-06 13:47 UTCEPSS rescore
  52. 2026-06-06 03:30 UTCEG score recompute
  53. 2026-06-06 03:30 UTCGHSA enrichment
  54. 2026-06-05 22:47 UTCEPSS rescore
  55. 2026-06-05 06:10 UTCEPSS rescore
  56. 2026-06-05 03:53 UTCEG score recompute
  57. 2026-06-05 03:53 UTCGHSA enrichment
  58. 2026-06-04 13:12 UTCEPSS rescore
  59. 2026-06-04 04:15 UTCEG score recompute
  60. 2026-06-04 04:15 UTCGHSA enrichment
  61. 2026-06-03 04:36 UTCEG score recompute
  62. 2026-06-03 04:35 UTCGHSA enrichment
  63. 2026-06-02 20:13 UTCEPSS rescore
  64. 2026-06-02 04:58 UTCEG score recompute
  65. 2026-06-02 04:58 UTCGHSA enrichment
  66. 2026-06-01 13:52 UTCEPSS rescore
  67. 2026-06-01 05:21 UTCEG score recompute
  68. 2026-06-01 05:21 UTCGHSA enrichment
  69. 2026-05-31 22:30 UTCEPSS rescore
  70. 2026-05-31 00:16 UTCEPSS rescore
  71. 2026-05-29 13:44 UTCEPSS rescore
  72. 2026-05-28 13:44 UTCEPSS rescore
  73. 2026-05-27 13:40 UTCEPSS rescore
  74. 2026-05-26 13:44 UTCEPSS rescore
  75. 2026-05-26 07:18 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-8753?
CVE-2026-8753 is a medium vulnerability published on May 17, 2026. A security vulnerability has been detected in kalcaddle Kodbox up to 1.64. This issue affects the function parseVideoInfo of the file /workspace/source-code/plugins/fileThumb/lib/VideoResize.class.php of the component fileThumb Plugin. The manipulation of the argument ffmpegBin leads to command…
When was CVE-2026-8753 disclosed?
CVE-2026-8753 was first published in the National Vulnerability Database on May 17, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8753 actively exploited?
CVE-2026-8753 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8753?
CVE-2026-8753 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-8753?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8753, 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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