CVE-2026-33354Public exploitNetwork attack vector

Authenticated local file read via chunkFile path injection

Published Mar 23, 2026 · Updated Mar 23, 2026

Path injection in World Wide Broadcast Network AVideo 26.0 and earlier allows remote authenticated users to read local files. The aVideoEncoder.json.php endpoint accepts a requester-controlled chunkFile path after broad isValidURLOrPath validation, then copies the selected file into public video storage. Upload permission, ownership of an editable video, and web-process read access to the target file are required; exposed data can include server secrets.

CVSS severity7.6
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path injection in World Wide Broadcast Network AVideo 26.0 and earlier allows remote authenticated users to read local files. The aVideoEncoder.json.php endpoint accepts a requester-controlled chunkFile path after broad isValidURLOrPath validation, then copies the selected file into public video storage. Upload permission, ownership of an editable video, and web-process read access to the target file are required; exposed data can include server secrets.

The record

CVE
CVE-2026-33354
Published
Mar 23, 2026
Updated
Mar 23, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-73, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 26.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=<= 26.0

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-73External Control of File Name or Path
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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