CVE-2025-34435Public exploitNetwork attack vector

Authenticated cross-user file deletion via unchecked video ID

Published Dec 17, 2025 · Updated Dec 17, 2025

Authorization bypass in World Wide Broadcast Network AVideo before 20.1 allows remote authenticated users to delete other users' media files. view/list-images.delete.json.php derives a media directory from the supplied videos_id and calls unlink() on the supplied name without verifying Video::canEdit() for that video. Any authenticated account can target a different user's video identifier, causing deletion of its named file without broader reported access.

CVSS severity8.7
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in World Wide Broadcast Network AVideo before 20.1 allows remote authenticated users to delete other users' media files. view/list-images.delete.json.php derives a media directory from the supplied videos_id and calls unlink() on the supplied name without verifying Video::canEdit() for that video. Any authenticated account can target a different user's video identifier, causing deletion of its named file without broader reported access.

The record

CVE
CVE-2025-34435
Published
Dec 17, 2025
Updated
Dec 17, 2025
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-639, T1485
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2025Record 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=0 <20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=0 <20.0

Published CVSS scores

8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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-639Authorization Bypass Through User-Controlled Key
T1485Data Destruction

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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