CVE-2026-84478Public exploitNetwork attack vectorHinoki check available

Unauthenticated log deletion via unvalidated code path

Published Sep 1, 2026 · Updated Sep 1, 2026

Path traversal in the API plugin of WWBN AVideo 29.0 and earlier allows remote attackers to delete server-side .log files. API::get_api_login_code() appends the unvalidated code parameter to the login-code directory, reads the resolved .log file, and calls unlink() before decrypting or validating its contents. No authentication is required; each successful probe deletes a web-server-writable log and the response reveals whether the selected path existed.

CVSS severity7.3
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in the API plugin of WWBN AVideo 29.0 and earlier allows remote attackers to delete server-side .log files. API::get_api_login_code() appends the unvalidated code parameter to the login-code directory, reads the resolved .log file, and calls unlink() before decrypting or validating its contents. No authentication is required; each successful probe deletes a web-server-writable log and the response reveals whether the selected path existed.

The record

CVE
CVE-2026-84478
Published
Sep 1, 2026
Updated
Sep 1, 2026
Vendor
WWBN
Product
AVideo
Classifications
CWE-22, CWE-73, CWE-552, T1070.002, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 1, 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=0 <=29.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WWBN · AVideoversion=0 <=29.0

Published CVSS scores

7.3VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-73External Control of File Name or Path
CWE-552Files or Directories Accessible to External Parties
T1070.002Clear Linux or Mac System Logs
T1083File and Directory Discovery

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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