AVideo has PHP Code Injection via eval() in Gallery saveSort.json.php Exploitable Through CSRF Against Admin

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

8.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

• CVE-2026-33479: 0.54% estimated exploitation activity in the next 30 days; percentile 45.53 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary The Gallery plugin's saveSort.json.php endpoint passes unsanitized user input from $REQUEST['sections'] array values directly into PHP's eval() function. While the endpoint is gated behind User::isAdmin(), it has no CSRF token validation. Combined with AVideo's explicit SameSite=None session cookie configuration, an attacker can exploit this via cross-site request forgery to achieve unauthenticated remote code execution — requiring only that an admin visits an attacker-controlled page. Details Vulnerable code — plugin/Gallery/view/saveSort.json.php:20-25: The $value variable from $REQUEST['sections'] is interpolated directly into the string passed to eval() with no sanitization — no allowlist, no regex validation, no escaping. Normal Gallery usage sends section names like 'Shorts', 'Trending', etc. from jQuery UI sortable, but the server enforces no such constraint. CSRF enablement — objects/includeconfig.php:134-137: The session cookie is explicitly set to SameSite=None,…

Published by the source

20 Mar 2026, 20:44 UTC

Last modified by the source

25 Mar 2026, 18:49 UTC

Source last checked

26 Oct 2026, 14:39 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-xggw-g9pm-9qhh

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# Patch Next advisory brief: CVE-2026-33479

Advisory: AVideo has PHP Code Injection via eval() in Gallery saveSort.json.php Exploitable Through CSRF Against Admin
IDs: CVE-2026-33479, GHSA-xggw-g9pm-9qhh
Record: https://patchnext.com/advisories/cve-2026-33479 (revision 1, source checked 26 Oct 2026, 14:39 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist wwbn/avideo: affected <= 26.0

## Suggested inspection (read-only)
- Packagist wwbn/avideo: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on wwbn/avideo.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-xggw-g9pm-9qhh (GitHub-reviewed advisory GHSA-xggw-g9pm-9qhh lists affected ranges: Packagist wwbn/avideo >=0 <=26.0)

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