CVE-2026-41304Public exploitNetwork attack vector

Admin-level remote code execution via unsafe wget command

Published Apr 21, 2026 · Updated Apr 21, 2026

Command injection in World Wide Broadcast Network AVideo 29.0 and earlier allows remote authenticated users to execute arbitrary server commands. The CloneSite plugin's cloneClient.json.php endpoint removes the quotes added by escapeshellarg, concatenates the resulting cloneSiteURL and SQL dump path into a wget command, and passes it to exec. Administrator access is required to set the malicious clone-site URL before the endpoint runs it as the web server user, enabling data access, modification, and service control.

CVSS severity9.8
Critical
EPSS probability2.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in World Wide Broadcast Network AVideo 29.0 and earlier allows remote authenticated users to execute arbitrary server commands. The CloneSite plugin's cloneClient.json.php endpoint removes the quotes added by escapeshellarg, concatenates the resulting cloneSiteURL and SQL dump path into a wget command, and passes it to exec. Administrator access is required to set the malicious clone-site URL before the endpoint runs it as the web server user, enabling data access, modification, and service control.

The record

CVE
CVE-2026-41304
Published
Apr 21, 2026
Updated
Apr 21, 2026
Vendor
World Wide Broadcast Network
Product
AVideo
Classifications
CWE-77, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 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=<= 29.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

World Wide Broadcast Network · AVideoversion=<= 29.0

Published CVSS scores

8.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix Shell

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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