CVE-2026-33478

CRITICALPre-NVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-20. a secondary CVSS source baseline 10.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
10.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 13%CVSS: 10.0Exploit: Elevated riskExposed: 0

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

WWBN AVideo is an open source video platform. In versions up to and including 26.0, multiple vulnerabilities in AVideo's CloneSite plugin chain together to allow a completely unauthenticated attacker to achieve remote code execution. The clones.json.php endpoint exposes clone secret keys without authentication, which can be used to trigger a full database dump via cloneServer.json.php. The dump contains admin password hashes stored as MD5, which are trivially crackable. With admin access, the attacker exploits an OS command injection in the rsync command construction in cloneClient.json.php to execute arbitrary system commands. Commit c85d076375fab095a14170df7ddb27058134d38c contains a patch.

CVSS v3
10.0
EG Score
10.0(medium)
EG Risk
76(Attend)
EG Risk 76/100SSVC: Attend

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
Severity100% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
13%
EPSS %ILE
96%
KEV
Not listed

Published

March 23, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-687q-32c6-8x68
github_commit Patch Available

commit c85d076375fa (WWBN/AVideo)

Patch available: WWBN/AVideo 29.0 (contains commit c85d076375fa)

https://github.com/WWBN/AVideo/commit/c85d076375fab095a14170df7ddb27058134d38c

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
composerwwbn/avideo—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
wwbn/avideo10.4 ... 26.0 (17 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

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

Publicly available exploits

(1 reference)

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

  • Nucleihttp/cves/2026/CVE-2026-33478.yaml
    First seen Jan 1, 2026

    AVideo <= 26.0 - WWBN AVideo - Remote Code Execution

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-33478?
CVE-2026-33478 is a critical vulnerability published on March 23, 2026. WWBN AVideo is an open source video platform. In versions up to and including 26.0, multiple vulnerabilities in AVideo's CloneSite plugin chain together to allow a completely unauthenticated attacker to achieve remote code execution. The clones.json.php endpoint exposes clone secret keys without…
When was CVE-2026-33478 disclosed?
CVE-2026-33478 was first published in the National Vulnerability Database on March 23, 2026, 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-2026-33478 actively exploited?
CVE-2026-33478 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13% probability of exploitation in the next 30 days, which ranks it in the top 3.8% of all scored CVEs.
What is the CVSS score of CVE-2026-33478?
CVE-2026-33478 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2026-33478?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33478, 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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