CVE-2026-41304

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-16. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.8Exploit: 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 29.0 and below, the cloneServer.json.php endpoint in the CloneSite plugin constructs shell commands using user-controlled input (url parameter) without proper sanitization. The input is directly concatenated into a wget command executed via exec(), allowing command injection. An attacker can inject arbitrary shell commands by breaking out of the intended URL context using shell metacharacters (e.g., ;). This leads to Remote Code Execution (RCE) on the server. Commit 473c609fc2defdea8b937b00e86ce88eba1f15bb contains a fix.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

April 22, 2026

Last Modified

April 24, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

RCE cause by clonesite plugin · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-xr6f-h4x7-r6qp
github_commit

commit 473c609fc2de (WWBN/AVideo)

Fix landed in WWBN/AVideo commit 473c609fc2de — awaiting tagged release

https://github.com/WWBN/AVideo/commit/473c609fc2defdea8b937b00e86ce88eba1f15bb

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 ... 29.0 (18 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 26× 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 258 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-41304?
CVE-2026-41304 is a critical vulnerability published on April 22, 2026. WWBN AVideo is an open source video platform. In versions 29.0 and below, the cloneServer.json.php endpoint in the CloneSite plugin constructs shell commands using user-controlled input (url parameter) without proper sanitization. The input is directly concatenated into a wget command executed via…
When was CVE-2026-41304 disclosed?
CVE-2026-41304 was first published in the National Vulnerability Database on April 22, 2026, with the most recent update on April 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41304 actively exploited?
CVE-2026-41304 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 18.3% of all scored CVEs.
What is the CVSS score of CVE-2026-41304?
CVE-2026-41304 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-41304?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-41304, 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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