---
id: CVE-2026-82396
title: >-
  Sulu is an open-source PHP content management system based on the Symfony
  framework
summary: >-
  Sulu is an open-source PHP content management system based on the Symfony
  framework. Prior to versions 2.6.25 and 3.0.8,
  src/Sulu/Bundle/MediaBundle/Controller/MediaStreamController.php allows the
  /media/{id}/download/{slug} route and it…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: sulu
product: sulu/sulu
affected:
  - sulu/sulu <= 2.6.24
  - 'sulu/sulu >= 3.0.0-alpha1, < 3.0.8'
patched:
  - sulu/sulu 2.6.25
  - sulu/sulu 3.0.8
published: '2026-08-31'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T21:11:31.703'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82396'
references:
  - url: >-
      https://github.com/sulu/sulu/commit/d061094f5b7bb1d5e974544fce30bede9c7adf8e
    label: security-advisories@github.com
  - url: 'https://github.com/sulu/sulu/releases/tag/2.6.25'
    label: security-advisories@github.com
  - url: 'https://github.com/sulu/sulu/releases/tag/3.0.8'
    label: security-advisories@github.com
  - url: 'https://github.com/sulu/sulu/security/advisories/GHSA-pp4x-ccxq-6r33'
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82396'
  - url: 'https://github.com/advisories/GHSA-pp4x-ccxq-6r33'
tags:
  - nvd
  - ghsa
  - composer
epss: 0.00298
epssPercentile: 0.20088
aliases:
  - GHSA-pp4x-ccxq-6r33
ecosystem: composer
ingestedAt: '2026-09-02T15:46:29.660Z'
---

## Overview

Sulu is an open-source PHP content management system based on the Symfony framework. Prior to versions 2.6.25 and 3.0.8, src/Sulu/Bundle/MediaBundle/Controller/MediaStreamController.php allows the /media/{id}/download/{slug} route and its administration variant to honor the inline query parameter for scriptable MIME types. The vulnerable stored Content-Type values include text/html, application/xhtml+xml, text/xml, and application/xml. An attacker with media upload permission can store an HTML, XHTML, or XML document and create a link using inline=1, causing the application to return the file on the Sulu origin instead of forcing Content-Disposition attachment. When an authenticated victim opens the link, attacker-controlled JavaScript can execute with the victim's Sulu-origin session and can read data or perform actions as that victim. This issue is fixed in versions 2.6.25 and 3.0.8.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-82396)

Affected packages:

- `sulu/sulu <= 2.6.24`
- `sulu/sulu >= 3.0.0-alpha1, < 3.0.8`

Patched in:

- `sulu/sulu 2.6.25`
- `sulu/sulu 3.0.8`

Source: https://github.com/advisories/GHSA-pp4x-ccxq-6r33