Advisory details:
github_osv / GHSA-4q27-4rrq-fx95
| Advisory ID | github_osv/GHSA-4q27-4rrq-fx95 |
| Aliases |
CVE-2026-35181
|
| Summary | AVideo: CSRF on Player Skin Configuration via admin/playerUpdate.json.php **Severity:** Medium **CWE:** CWE-352 (Cross-Site Request Forgery) ## Summary The player skin configuration endpoint at `admin/playerUpdate.json.php` does not validate CSRF tokens. The `plugins` table is explicitly excluded from the ORM's domain-based security check via `ignoreTableSecurityCheck()`, removing the only other layer of defense. Combined with `SameSite=None` cookies, a cross-origin POST can modify the video player appearance on the entire platform. ## Details In `admin/playerUpdate.json.php` at line 17, the player skin is set directly from POST data: ```php $pluginDO->skin = $_POST['skin']; ``` No CSRF token is validated anywhere in the endpoint. Normally, the ORM layer performs a Referer/Origin domain check as a secondary defense against cross-origin writes. However, the `plugins` table is registered in `ignoreTableSecurityCheck()`, which explicitly bypasses this ORM-level protection for plugin configuration. AVideo's session cookies are configured with `SameSite=None`, meaning the admin's authenticated session cookie is automatically included in cross-origin POST requests from any website. An attacker can craft a page that, when visited by an authenticated admin, silently changes the player skin to any value, including potentially invalid or disruptive configurations. ## Proof of Concept Host the following HTML on an attacker-controlled domain: ```html <!DOCTYPE html> <html> <head><title>CSRF Player Skin</title></head> <body> <h1>Loading video...</h1> <form id="csrf" method="POST" action="https://your-avideo-instance.com/admin/playerUpdate.json.php"> <input type="hidden" name="skin" value="minimalist" /> </form> <script> document.getElementById("csrf").submit(); </script> </body> </html> ``` When an authenticated admin visits this page, the platform's player skin is changed without their knowledge. ## Impact - Platform-wide player appearance modification without admin consent - Potential disruption of video playback if an invalid skin value is set - The ORM security bypass via `ignoreTableSecurityCheck()` means there is no fallback protection - Can be used as part of a broader defacement or social engineering attack ## Recommended Fix Add CSRF token validation at `admin/playerUpdate.json.php`, before processing POST data: ```php // admin/playerUpdate.json.php (before line 17) if (!isGlobalTokenValid()) { die('{"error":"Invalid CSRF token"}'); } ``` --- *Found by [aisafe.io](https://aisafe.io)* |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 3.9 |
| Risk | 1.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 4.3 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-4q27-4rrq-fx95/GHSA-4q27-4rrq-fx95.json |
| generic_textual | MODERATE |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/WWBN/AVideo | ||
| https://github.com/WWBN/AVideo/security/advisories/GHSA-4q27-4rrq-fx95 | ||
| CVE-2026-35181 | https://nvd.nist.gov/vuln/detail/CVE-2026-35181 |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2026-04-07T15:05:48Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/35xxx/CVE-2026-35181.json
Source Advisory: vulnrichment/CVE-2026-35181
[{'Exploitation': 'poc'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]