Vulnerability-Lookup

CVE-2026-33238 (GCVE-0-2026-33238)

Vulnerability from cvelistv5 – Published: 2026-03-20 23:31 – Updated: 2026-05-06 14:40

Title

AVideo has a Path Traversal in listFiles.json.php that Enables Server Filesystem Enumeration

Summary

WWBN AVideo is an open source video platform. Prior to version 26.0, the `listFiles.json.php` endpoint accepts a `path` POST parameter and passes it directly to `glob()` without restricting the path to an allowed base directory. An authenticated uploader can traverse the entire server filesystem by supplying arbitrary absolute paths, enumerating `.mp4` filenames and their full absolute filesystem paths wherever they exist on the server — including locations outside the web root, such as private or premium media directories. Version 26.0 contains a patch for the issue.

Severity

4.3 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-24 13:42 UTC

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7760 records in the last 180 days details

References

3 references

URL	Tags
https://github.com/WWBN/AVideo/security/advisorie…	x_refsource_CONFIRM
https://github.com/WWBN/AVideo/issues/10403	x_refsource_MISC
https://github.com/WWBN/AVideo/commit/870cf24a763…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
WWBN	AVideo	Affected: < 26.0	guessed

Show details on NVD website

JSON

To clipboard

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}

FKIE_CVE-2026-33238

Vulnerability from fkie_nvd - Published: 2026-03-21 00:16 - Updated: 2026-06-17 10:37

Severity

4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/WWBN/AVideo/commit/870cf24a7632d4f1a5d5549b59103c18f39e3a21	Patch
security-advisories@github.com	https://github.com/WWBN/AVideo/issues/10403
security-advisories@github.com	https://github.com/WWBN/AVideo/security/advisories/GHSA-4wmm-6qxj-fpj4	Exploit, Mitigation, Vendor Advisory

Impacted products

	Vendor	Product	Version
	wwbn	avideo	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "AVideo",
          "vendor": "WWBN",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 26.0"
            }
          ]
        }
      ],
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    }
  ],
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              "versionEndExcluding": "26.0",
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    },
    {
      "lang": "es",
      "value": "WWBN AVideo es una plataforma de video de c\u00f3digo abierto. Antes de la versi\u00f3n 26.0, el endpoint \u0027listFiles.json.php\u0027 acepta un par\u00e1metro POST \u0027path\u0027 y lo pasa directamente a \u0027glob()\u0027 sin restringir la ruta a un directorio base permitido. Un cargador autenticado puede recorrer todo el sistema de archivos del servidor al proporcionar rutas absolutas arbitrarias, enumerando nombres de archivo .mp4 y sus rutas absolutas completas del sistema de archivos dondequiera que existan en el servidor \u2014 incluyendo ubicaciones fuera de la ra\u00edz web, como directorios de medios privados o premium. La versi\u00f3n 26.0 contiene un parche para el problema."
    }
  ],
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  "lastModified": "2026-06-17T10:37:10.503",
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    }
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      ],
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  ]
}

GHSA-4WMM-6QXJ-FPJ4

Vulnerability from github – Published: 2026-03-19 12:43 – Updated: 2026-04-13 17:41

Summary

AVideo has a Path Traversal in listFiles.json.php Enables Server Filesystem Enumeration

Details

Summary

The listFiles.json.php endpoint accepts a path POST parameter and passes it directly to glob() without restricting the path to an allowed base directory. An authenticated uploader can traverse the entire server filesystem by supplying arbitrary absolute paths, enumerating .mp4 filenames and their full absolute filesystem paths wherever they exist on the server — including locations outside the web root, such as private or premium media directories.

Details

The vulnerable code is at objects/listFiles.json.php:8-45:

if (!User::canUpload() || !empty($advancedCustom->doNotShowImportMP4Button)) {
    return false;
}
$global['allowed'] = ['mp4'];
// ...
if (!empty($_POST['path'])) {
    $path = $_POST['path'];
    if (substr($path, -1) !== '/') {
        $path .= "/";
    }
    if (file_exists($path)) {
        $extn = implode(",*.", $global['allowed']);
        $filesStr = "{*." . $extn . ",*." . strtolower($extn) . ",*." . strtoupper($extn) . "}";
        $video_array = glob($path . $filesStr, GLOB_BRACE);
        foreach ($video_array as $key => $value) {
            $filePath = mb_convert_encoding($value, 'UTF-8');
            // ...
            $obj->path = $filePath;  // Full absolute path returned to caller

The $_POST['path'] value is used directly in glob() with no call to realpath() for normalization and no prefix check against a permitted base directory (e.g., $global['systemRootPath'] . 'videos/'). The response includes obj->path containing the full absolute filesystem path of each matched file.

The extension filter ({*.mp4,*.mp4,*.MP4}) limits results to .mp4 files, which prevents reading credentials or source code but does not prevent enumeration of video files stored in access-controlled locations such as: - Premium/paid content directories - Private or unlisted media stores - Backup directories containing .mp4 files - Paths revealing sensitive server directory structure

canUpload is a standard low-privilege role granted to any registered uploader; it does not imply administrative trust.

PoC

# Step 1: Authenticate as any user with canUpload permission
# (standard uploader account)

# Step 2: Enumerate MP4 files in the web root (expected behavior)
curl -b "PHPSESSID=<session>" -X POST https://target.avideo.site/listFiles \
  -d "path=/var/www/html/videos/"
# Returns: [{"id":0,"path":"/var/www/html/videos/video1.mp4","name":"video1.mp4"}, ...]

# Step 3: Traverse outside intended directory to private content store
curl -b "PHPSESSID=<session>" -X POST https://target.avideo.site/listFiles \
  -d "path=/var/private/premium-content/"
# Returns: [{"id":0,"path":"/var/private/premium-content/paywalled-video.mp4","name":"paywalled-video.mp4"}, ...]

# Step 4: Enumerate root filesystem for any MP4 files
curl -b "PHPSESSID=<session>" -X POST https://target.avideo.site/listFiles \
  -d "path=/"
# Returns all .mp4 files visible to the web server process anywhere on disk

Expected behavior: Only files within the designated upload directory should be listable. Actual behavior: Files from any path readable by the web server process are returned with full absolute paths.

Impact

Unauthorized media enumeration: An uploader can discover private, premium, or access-controlled .mp4 files stored outside their permitted directory.
Filesystem structure disclosure: Full absolute paths reveal server directory layout, aiding further attacks.
Content bypass: In AVideo deployments where premium video files are stored in filesystem directories not protected by application access control, this exposes the filenames and paths needed to directly access them if other path traversal or direct-file-access weaknesses are present.
Blast radius: Requires canUpload permission (low privilege), but this is the standard permission for all video uploaders on a multi-user AVideo instance.

Recommended Fix

Restrict the supplied path to an allowed base directory using realpath():

if (!empty($_POST['path'])) {
    $allowedBase = realpath($global['systemRootPath'] . 'videos') . '/';
    $path = realpath($_POST['path']);

    // Reject paths that don't start with the allowed base
    if ($path === false || strpos($path . '/', $allowedBase) !== 0) {
        http_response_code(403);
        echo json_encode(['error' => 'Path not allowed']);
        exit;
    }
    $path .= '/';
    // ... continue with glob
}

realpath() resolves ../ sequences before the prefix check, preventing traversal bypasses.

Severity

4.3 (Medium)


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

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 25.0"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "wwbn/avideo"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "26.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33238"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-19T12:43:42Z",
    "nvd_published_at": "2026-03-21T00:16:26Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\n\nThe `listFiles.json.php` endpoint accepts a `path` POST parameter and passes it directly to `glob()` without restricting the path to an allowed base directory. An authenticated uploader can traverse the entire server filesystem by supplying arbitrary absolute paths, enumerating `.mp4` filenames and their full absolute filesystem paths wherever they exist on the server \u2014 including locations outside the web root, such as private or premium media directories.\n\n## Details\n\nThe vulnerable code is at `objects/listFiles.json.php:8-45`:\n\n```php\nif (!User::canUpload() || !empty($advancedCustom-\u003edoNotShowImportMP4Button)) {\n    return false;\n}\n$global[\u0027allowed\u0027] = [\u0027mp4\u0027];\n// ...\nif (!empty($_POST[\u0027path\u0027])) {\n    $path = $_POST[\u0027path\u0027];\n    if (substr($path, -1) !== \u0027/\u0027) {\n        $path .= \"/\";\n    }\n    if (file_exists($path)) {\n        $extn = implode(\",*.\", $global[\u0027allowed\u0027]);\n        $filesStr = \"{*.\" . $extn . \",*.\" . strtolower($extn) . \",*.\" . strtoupper($extn) . \"}\";\n        $video_array = glob($path . $filesStr, GLOB_BRACE);\n        foreach ($video_array as $key =\u003e $value) {\n            $filePath = mb_convert_encoding($value, \u0027UTF-8\u0027);\n            // ...\n            $obj-\u003epath = $filePath;  // Full absolute path returned to caller\n```\n\nThe `$_POST[\u0027path\u0027]` value is used directly in `glob()` with no call to `realpath()` for normalization and no prefix check against a permitted base directory (e.g., `$global[\u0027systemRootPath\u0027] . \u0027videos/\u0027`). The response includes `obj-\u003epath` containing the full absolute filesystem path of each matched file.\n\nThe extension filter (`{*.mp4,*.mp4,*.MP4}`) limits results to `.mp4` files, which prevents reading credentials or source code but does not prevent enumeration of video files stored in access-controlled locations such as:\n- Premium/paid content directories\n- Private or unlisted media stores\n- Backup directories containing `.mp4` files\n- Paths revealing sensitive server directory structure\n\n`canUpload` is a standard low-privilege role granted to any registered uploader; it does not imply administrative trust.\n\n## PoC\n\n```bash\n# Step 1: Authenticate as any user with canUpload permission\n# (standard uploader account)\n\n# Step 2: Enumerate MP4 files in the web root (expected behavior)\ncurl -b \"PHPSESSID=\u003csession\u003e\" -X POST https://target.avideo.site/listFiles \\\n  -d \"path=/var/www/html/videos/\"\n# Returns: [{\"id\":0,\"path\":\"/var/www/html/videos/video1.mp4\",\"name\":\"video1.mp4\"}, ...]\n\n# Step 3: Traverse outside intended directory to private content store\ncurl -b \"PHPSESSID=\u003csession\u003e\" -X POST https://target.avideo.site/listFiles \\\n  -d \"path=/var/private/premium-content/\"\n# Returns: [{\"id\":0,\"path\":\"/var/private/premium-content/paywalled-video.mp4\",\"name\":\"paywalled-video.mp4\"}, ...]\n\n# Step 4: Enumerate root filesystem for any MP4 files\ncurl -b \"PHPSESSID=\u003csession\u003e\" -X POST https://target.avideo.site/listFiles \\\n  -d \"path=/\"\n# Returns all .mp4 files visible to the web server process anywhere on disk\n```\n\n**Expected behavior:** Only files within the designated upload directory should be listable.\n**Actual behavior:** Files from any path readable by the web server process are returned with full absolute paths.\n\n## Impact\n\n- **Unauthorized media enumeration:** An uploader can discover private, premium, or access-controlled `.mp4` files stored outside their permitted directory.\n- **Filesystem structure disclosure:** Full absolute paths reveal server directory layout, aiding further attacks.\n- **Content bypass:** In AVideo deployments where premium video files are stored in filesystem directories not protected by application access control, this exposes the filenames and paths needed to directly access them if other path traversal or direct-file-access weaknesses are present.\n- **Blast radius:** Requires `canUpload` permission (low privilege), but this is the standard permission for all video uploaders on a multi-user AVideo instance.\n\n## Recommended Fix\n\nRestrict the supplied path to an allowed base directory using `realpath()`:\n\n```php\nif (!empty($_POST[\u0027path\u0027])) {\n    $allowedBase = realpath($global[\u0027systemRootPath\u0027] . \u0027videos\u0027) . \u0027/\u0027;\n    $path = realpath($_POST[\u0027path\u0027]);\n\n    // Reject paths that don\u0027t start with the allowed base\n    if ($path === false || strpos($path . \u0027/\u0027, $allowedBase) !== 0) {\n        http_response_code(403);\n        echo json_encode([\u0027error\u0027 =\u003e \u0027Path not allowed\u0027]);\n        exit;\n    }\n    $path .= \u0027/\u0027;\n    // ... continue with glob\n}\n```\n\n`realpath()` resolves `../` sequences before the prefix check, preventing traversal bypasses.",
  "id": "GHSA-4wmm-6qxj-fpj4",
  "modified": "2026-04-13T17:41:29Z",
  "published": "2026-03-19T12:43:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/WWBN/AVideo/security/advisories/GHSA-4wmm-6qxj-fpj4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33238"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WWBN/AVideo/issues/10403"
    },
    {
      "type": "WEB",
      "url": "https://github.com/WWBN/AVideo/commit/870cf24a7632d4f1a5d5549b59103c18f39e3a21"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/WWBN/AVideo"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "AVideo has a Path Traversal in listFiles.json.php Enables Server Filesystem Enumeration"
}

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Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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CVE-2026-33238 (GCVE-0-2026-33238)

FKIE_CVE-2026-33238

GHSA-4WMM-6QXJ-FPJ4

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