CVE-2026-28502: Wwbn/avideo Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-v8jw-8w5p-23g3
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CWE-434
Published
Advisory Summary

CVE-2026-28502 is a CRITICAL remote code execution vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting Wwbn/avideo libraries in the Packagist ecosystem. The issue involves avideo has authenticated remote code execution via unsafe plugin zip extraction. Remediation is available in the latest vendor maintenance releases.

CVE-2026-28502 at a Glance

CVE Identifier CVE-2026-28502
GHSA Identifier GHSA-v8jw-8w5p-23g3
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification CWE-434: Unrestricted Upload of File with Dangerous Type
Affected Product Wwbn/avideo
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2026-28502

To remediate this vulnerability, upgrade all affected Wwbn/avideo dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

wwbn/avideo fixed: Latest secure release 
Upgrade wwbn/avideo to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for wwbn/avideo

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-28502, inspect your project dependencies for Wwbn/avideo:

inspect dependencies for wwbn/avideo

Analyze the terminal output to locate any version of Wwbn/avideo in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In Wwbn/avideo, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## 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.

CVE-2026-28502 Affected Wwbn/avideo Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
wwbn/avideo
 Packagist

References

GitHub Advisory / Wiki ADVISORY
https://github.com/WWBN/AVideo/security/advisories/GHSA-v8jw-8w5p-23g3
NVD — CVE-2026-28502 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28502
Security Fix Commit FIX COMMIT
https://github.com/WWBN/AVideo/commit/b739aeeb9ce34aed9961d2c155d597810f8229db
Wwbn/avideo Source Repository REPOSITORY
https://github.com/WWBN/AVideo
Wwbn/avideo Release RELEASE
https://github.com/WWBN/AVideo/releases/tag/24.0

Frequently Asked Questions

What is CVE-2026-28502?
CVE-2026-28502 is a security vulnerability in Wwbn/avideo involving AVideo has Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction under CWE-434: Unrestricted Upload of File with Dangerous Type.
Which Wwbn/avideo versions are affected?
Affected versions include releases prior to current release patches across affected packages: wwbn/avideo.
What version fixes CVE-2026-28502?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is wwbn/avideo affected?
Yes, wwbn/avideo is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2026-28502?
CVE-2026-28502 is classified under CWE-434: Unrestricted Upload of File with Dangerous Type (The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.).
How can I check Packagist dependencies for CVE-2026-28502?
Run the dependency tree command: 'inspect dependencies for wwbn/avideo'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-v8jw-8w5p-23g3",
  "modified" : "2026-03-06T14:24:02Z",
  "published" : "2026-03-02T20:56:52Z",
  "aliases" : [ "CVE-2026-28502" ],
  "summary" : "AVideo has Authenticated Remote Code Execution via Unsafe Plugin ZIP Extraction",
  "details" : "## Summary\nAn authenticated Remote Code Execution (RCE) vulnerability was identified in AVideo related to the plugin upload/import functionality.\n\nThe 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.\n\n## Vulnerability Type\n- Remote Code Execution (RCE)\n- CWE-434: Unrestricted Upload of File with Dangerous Type\n\n## Affected Versions\n- All versions up to and including 22.x.\n\n## Fixed Version\n- A fix is expected to be released in version 23.\n\n## Root Cause\nThe 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.\n\n## Impact\nAn authenticated administrator could execute arbitrary code on the server, resulting in full system compromise, including:\n- Confidentiality loss\n- Integrity loss\n- Availability impact\n\n## Remediation\nUpgrade immediately to **AVideo version 23 or later**.\n\nVersion 23 introduces improved validation and secure handling of plugin extraction.\n\n## Workarounds\nIf upgrade is not immediately possible:\n- Disable plugin upload/import functionality.\n- Configure the web server to prevent execution of PHP files inside plugin upload directories.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "wwbn/avideo"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 21.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/security/advisories/GHSA-v8jw-8w5p-23g3"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-28502"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/commit/b739aeeb9ce34aed9961d2c155d597810f8229db"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/WWBN/AVideo"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WWBN/AVideo/releases/tag/24.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-434" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-02T20:56:52Z",
    "nvd_published_at" : "2026-03-06T04:16:08Z"
  }
}