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CVE-2026-33478

INDEX BUILT · 2026-09-20

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

CVE-2026-334784 of 4 sources documented this
32

rank 32 = 3 + 25 + 2 + 2 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.13266  ·  without this subject the record ranks 29

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 10.0, from the CNA  ·  without this subject the record ranks 7

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-04-09  ·  without this subject the record ranks 30

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 30

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 32

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$662,000over the next 30 days, if this record is yours
Movement-$122,000on 2026-05-21, the last material move, 25 days before this reading
Basisassumeda published average, not your estate

$662,000 = $4.99M incident cost x 1 exposure x 0.13266 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.13266EPSSNOT IN KEVas of 2026-09-20
Severity10 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementthreshold crossedreceipt
PLATEAU10Minimal movement since 2026-04-09, 67 days at 0.13, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

CVE-2024-51378ivanti SentryArista Networkskestra-io kestraCVE-2023-43208CVE-2021-2710433478

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running WWBN AVideo? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'); CWE-284 Improper Access Controlreceipt
Published consequencesCWE-78: Confidentiality, Integrity, Availability, Non-Repudiation: Execute Unauthorized Code or Commands, DoS: Crash, Exit, or Restart, Read Files or Directories, Modify Files or Directories, Read…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 15 Jun 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA10 CRITICALreceipt
Exploit probability0.13266 · top 4% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes13 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productWWBN AVideoreceipt
Published rangeswwbn avideo <= 26.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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Attack path

Unauthenticated network requestno credentials, no interactionWWBN AVideoCWE-78 OS command injectionAdjacent componentsscope changeFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-78scope changedata compromise

What it is stated by the CNA

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. receipt

Read the rest of the CNA's description

Commit c85d076375fab095a14170df7ddb27058134d38c contains a patch.

NVD's analysis a second authority

weakness
CWE-78; CWE-284
affected versions
wwbn avideo <= 26.0
also scored by
[email protected] 10 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

check it yourself github.com github.com receipt

Dated events

2026-04-09EPSS moved 0.02 to 0.152026-06-15EPSS moved 0.07 to 0.13

Movement the material steps

24 Mar 20260.0066
9 Apr 20260.14849 · crossed 0.10
21 May 20260.07822 · crossed 0.10
15 Jun 20260.13266 · crossed 0.10 · scoring model v2026.06.15

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 13 observations
24 Mar 20260.0066
25 Mar 20260.01534
29 Mar 20260.01953
9 Apr 20260.14849
10 Apr 20260.16239
13 Apr 20260.20579
21 Apr 20260.11137
24 Apr 20260.10881
4 May 20260.12178
17 May 20260.10257
21 May 20260.07822
30 May 20260.07135
15 Jun 20260.13266

13 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.13266Published2026-03-23Index as of2026-06-15

Exploit probability more than doubled between 2026-03-24 and 2026-03-25 (0.0066 → 0.01534) and the record had been public for 2 months when this index was last written.

Published 2026-03-23 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-51378matches 8 of 9KEV listed · 2024receipt
CVE-2026-10520 · ivanti Sentrymatches 8 of 10KEV listed · 2026receipt
CVE-2026-16812 · Arista Networks VeloCloud Orchestrator On-Premmatches 8 of 10KEV listed · 2026receipt
CVE-2026-49869 · kestra-io kestramatches 8 of 10KEV listed · 2026receipt
CVE-2023-43208matches 7 of 9KEV listed · 2023receipt
CVE-2021-27104matches 7 of 9KEV listed · 2021receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

6775 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

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What usually comes next

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