AVideo has an Unauthenticated Video Password Brute-Force Vulnerability via Unrate-Limited Boolean Oracle

Exploitation

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

CVSS

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

EPSS

• CVE-2026-33763: 0.33% estimated exploitation activity in the next 30 days; percentile 26.47 (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 getapivideopasswordiscorrect API endpoint allows any unauthenticated user to verify whether a given password is correct for any password-protected video. The endpoint returns a boolean passwordIsCorrect field with no rate limiting, CAPTCHA, or authentication requirement, enabling efficient offline-speed brute-force attacks against video passwords. Details The vulnerable endpoint is defined at plugin/API/API.php:1111-1133: The get() dispatcher at API.php:191-209 routes GET requests directly to this method without any authentication enforcement: The application has a checkRateLimit() mechanism (line 5737) that is applied to user registration (line 4232) and user deactivation (line 5705), but is not applied to this password verification endpoint. Additionally, video passwords are stored in plaintext (objects/video.php:523-527): The comparison at line 1125 uses loose equality (==) rather than strict equality (===). PoC Step 1: Identify a password-protected video A non-empty…

Published by the source

26 Mar 2026, 18:07 UTC

Last modified by the source

27 Mar 2026, 21:38 UTC

Source last checked

26 Oct 2026, 14:39 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-8prq-2jr2-cm92

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# Patch Next advisory brief: CVE-2026-33763

Advisory: AVideo has an Unauthenticated Video Password Brute-Force Vulnerability via Unrate-Limited Boolean Oracle
IDs: CVE-2026-33763, GHSA-8prq-2jr2-cm92
Record: https://patchnext.com/advisories/cve-2026-33763 (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: Medium (CVSS 5.3)
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-8prq-2jr2-cm92 (GitHub-reviewed advisory GHSA-8prq-2jr2-cm92 lists affected ranges: Packagist wwbn/avideo >=0 <=26.0)

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