CVE-2025-34439Public exploitNetwork attack vectorHinoki check available

Phishing redirection via unchecked cancel link URL

Published Dec 17, 2025 · Updated Dec 17, 2025

Open redirect in AVideo before 20.1 allows remote attackers to send links that redirect users to attacker-controlled sites. The view/userLogin.php login view places cancelUri in its cancel link after checking only that it is a valid URL, not that it is relative or same-origin. No account is required to craft the link, but a user must follow it and activate the cancel action; the resulting off-site navigation can support phishing without changing server data.

CVSS severity4.8
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Open redirect in AVideo before 20.1 allows remote attackers to send links that redirect users to attacker-controlled sites. The view/userLogin.php login view places cancelUri in its cancel link after checking only that it is a valid URL, not that it is relative or same-origin. No account is required to craft the link, but a user must follow it and activate the cancel action; the resulting off-site navigation can support phishing without changing server data.

The record

CVE
CVE-2025-34439
Published
Dec 17, 2025
Updated
Dec 17, 2025
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-601, T1566.002
Attack vector
network
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

World Wide Broadcast Network · AVideoversion=0 <20.0

Published CVSS scores

4.8VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1ChocapikkCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1566.002Spearphishing Link

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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