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CVE-2026-28502

WWBN AVideo: Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction

9.3 CriticalFix available

WWBN AVideo is an open source video platform. Prior to version 24.0, an authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality. The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution. This issue has been patched in version 24.0.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.77%Up 0.4 points since Mar 6, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.3

WWBN AVideo: Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction

WWBN AVideo is an open source video platform. Prior to version 24.0, an authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality. The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution. This issue has been patched in version 24.0.

Record
CVE-2026-28502
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-434
Updated
2026-11-02
EUVDEUVD-2026-9971 9.3

WWBN AVideo is an open source video platform. Prior to version 24.0, an authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality. The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution. This issue has been patched in version 24.0.

Record
EUVD-2026-9971
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-v8jw-8w5p-23g3 9.3

AVideo has Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction

Summary

An authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality.

The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution.

Vulnerability Type

  • Remote Code Execution (RCE)
  • CWE-434: Unrestricted Upload of File with Dangerous Type

Affected Versions

  • All versions up to and including 22.x.

Fixed Version

  • A fix is expected to be released in version 23.

Root Cause

The system validated only the ZIP extension of uploaded plugin packages but did not enforce a strict allowlist of file types within the archive. Extracted files were placed directly in a web-accessible directory without preventing execution of server-side scripts.

Impact

An authenticated administrator could execute arbitrary code on the server, resulting in full system compromise, including:

  • Confidentiality loss
  • Integrity loss
  • Availability impact

Remediation

Upgrade immediately to AVideo version 23 or later.

Version 23 introduces improved validation and secure handling of plugin extraction.

Workarounds

If upgrade is not immediately possible:

  • Disable plugin upload/import functionality.
  • Configure the web server to prevent execution of PHP files inside plugin upload directories.
Record
GHSA-v8jw-8w5p-23g3
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-434
Updated
2026-11-02
NVD 9.3

WWBN AVideo is an open source video platform. Prior to version 24.0, an authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality. The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution. This issue has been patched in version 24.0.

Record
CVE-2026-28502
CVSS 4.0
9.3 CriticalCVSS: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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-434
Updated
2026-11-02
OSV 9.3

WWBN AVideo: Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction

WWBN AVideo is an open source video platform. Prior to version 24.0, an authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality. The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution. This issue has been patched in version 24.0.

Record
CVE-2026-28502
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-434
Updated
2026-11-02
OSVGHSA-v8jw-8w5p-23g3 9.3

AVideo has Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction

Summary

An authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality.

The issue allowed an authenticated administrator to upload a specially crafted ZIP archive containing executable server-side files. Due to insufficient validation of extracted file contents, the archive was extracted directly into a web-accessible plugin directory, allowing arbitrary PHP code execution.

Vulnerability Type

  • Remote Code Execution (RCE)
  • CWE-434: Unrestricted Upload of File with Dangerous Type

Affected Versions

  • All versions up to and including 22.x.

Fixed Version

  • A fix is expected to be released in version 23.

Root Cause

The system validated only the ZIP extension of uploaded plugin packages but did not enforce a strict allowlist of file types within the archive. Extracted files were placed directly in a web-accessible directory without preventing execution of server-side scripts.

Impact

An authenticated administrator could execute arbitrary code on the server, resulting in full system compromise, including:

  • Confidentiality loss
  • Integrity loss
  • Availability impact

Remediation

Upgrade immediately to AVideo version 23 or later.

Version 23 introduces improved validation and secure handling of plugin extraction.

Workarounds

If upgrade is not immediately possible:

  • Disable plugin upload/import functionality.
  • Configure the web server to prevent execution of PHP files inside plugin upload directories.
Record
GHSA-v8jw-8w5p-23g3
CVSS 4.0
9.3 CriticalCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-434
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
wwbn/avideo
Packagist
 before 21.0
21.0
wwbn/avideo
Packagist
 All versions, plus listed versions
10.410.81111.111.1.1
Show 13 moreShow less
11.511.612.414.314.3.114.418.021.022.024.025.026.029.0
 None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-28502 is a critical vulnerability (CVSS 9.3) in Wwbn Avideo, published March 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.77%, the 55th percentile. Fixed in wwbn/avideo 21.0.

References

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