Shell Metacharacter Injection in WWBN AVideo Open Source Video Platform
CVE-2026-45578

8.8HIGH

Key Information:

Vendor

Wwbn

Status
Avideo
Vendor
CVE Published:
29 May 2026

What is CVE-2026-45578?

WWBN AVideo is an open source video platform that contains a vulnerability in versions 29.0 and earlier. The issue arises within the YPTSocket notification branch of the plugin, specifically in the on_publish.php file. Due to improper handling of string concatenation in the execAsync() command line, where arguments are single-quoted but not sanitized using escapeshellarg(), an attacker can exploit this by injecting malicious shell metacharacters. If an attacker successfully manipulates any of the interpolated values, it allows for the execution of arbitrary system commands, thereby posing significant security risks to the affected systems.

Affected Version(s)

AVideo <= 29.0

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-x...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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