# CVE-2026-40928

> Vulnerability · severity: **MEDIUM** (CVSS 5.4).

## Description

WWBN AVideo is an open source video platform. In versions 29.0 and prior, multiple AVideo JSON endpoints under `objects/` accept state-changing requests via `$_REQUEST`/`$_GET` and persist changes tied to the caller's session user, without any anti-CSRF token, origin check, or referer check. A malicious page visited by a logged-in victim can silently cast/flip the victim's like/dislike on any comment (`objects/comments_like.json.php`), post a comment authored by the victim on any video, with attacker-chosen text (`objects/commentAddNew.json.php`), and/or delete assets from any category (`objects/categoryDeleteAssets.json.php`) when the victim has category management rights. Each endpoint is reachable from a browser via a simple `<img src="…">` tag or form submission, so exploitation only requires the victim to load an attacker-controlled HTML resource. Commit 7aaad601bd9cd7b993ba0ee1b1bea6c32ee7b77c contains a fix.

## Key facts

- **CVE ID:** CVE-2026-40928
- **Published:** 2026-04-21
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.4
- **CWE codes:** CWE-352

## Affected products

- `wwbn:avideo`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40928

## Citation

> AI Analytics. CVE-2026-40928. Retrieved 2026-07-08 from https://api.ai-analytics.org/cve/CVE-2026-40928. Derived from NIST NVD. Licensed CC0.

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