WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo installation script install/deleteSystemdPrivate.php contains a PHP operator precedence bug in its CLI-only access guard. The script is intended to run exclusively from the command line, but the guard condition !php_sapi_name() === 'cli' never evaluates to true due to how PHP resolves operator precedence. The ! (logical NOT) operator binds more tightly than === (strict comparison), causing the expression to always evaluate to false, which means the die() statement never executes. As a result, the script is accessible via HTTP without authentication and will delete files from the server's temp directory while also disclosing the temp directory contents in its response. At time of publication, there are no publicly available patches.

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Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-wwpw-hrx8-79r5 AVideo: Unauthenticated File Deletion via PHP Operator Precedence Bug in CLI Guard
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 01 Apr 2026 23:45:00 +0000

Type Values Removed Values Added
First Time appeared Wwbn
Wwbn avideo
CPEs cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*
Vendors & Products Wwbn
Wwbn avideo
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 01 Apr 2026 02:15:00 +0000

Type Values Removed Values Added
Description WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo installation script install/deleteSystemdPrivate.php contains a PHP operator precedence bug in its CLI-only access guard. The script is intended to run exclusively from the command line, but the guard condition !php_sapi_name() === 'cli' never evaluates to true due to how PHP resolves operator precedence. The ! (logical NOT) operator binds more tightly than === (strict comparison), causing the expression to always evaluate to false, which means the die() statement never executes. As a result, the script is accessible via HTTP without authentication and will delete files from the server's temp directory while also disclosing the temp directory contents in its response. At time of publication, there are no publicly available patches.
Title AVideo: Unauthenticated File Deletion via PHP Operator Precedence Bug in CLI Guard
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-01T18:45:09.886Z

Reserved: 2026-03-30T18:41:20.754Z

Link: CVE-2026-34733

cve-icon Vulnrichment

Updated: 2026-04-01T18:45:06.402Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-31T21:16:32.083

Modified: 2026-04-01T18:40:28.920

Link: CVE-2026-34733

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses