Sign in
Deutsch English Español Polski
Medium

Typo3 Arbitrary file upload and XML External Entity processing

  • Disclosed: 05.06.2024
  • Updated: 11.10.2026 10:22

It has been discovered that Flow 3.0.0 allows arbitrary file uploads, inlcuding server-side scripts, posing the risk of attacks. If those scripts are executed by the server when accessed through their public URL, anything not blocked through other means is possible (information disclosure, placement of backdoors, data removal, …).

Note: The upload of files is only possible if the application built on Flow provides means to do so, and whether or not the upload of files poses a risk is dependent on the system setup. If uploaded script files are not executed by the server, there is no risk. In versions prior to 3.0.0 the upload of files with the extension php was blocked.

In Flow 2.3.0 to 2.3.6 a potential XML External Entity processing vulnerability has been discovered in the MediaTypeConverter.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package typo3/flow >= 2.3.0, < 2.3.7, >= 3.0.0, < 3.0.1 2.3.7, 3.0.1

References

CVSS score -
Weakness (CWE)
-
Platform
Composer
Package
typo3/flow
Disclosed
05.06.2024
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-2p4f-vc9q-r5vp - CC BY 4.0

Vulnerability history: typo3/flow

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
5
First → latest
05.2022 06.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 1
  • Medium 4

Disclosures per year

  1. Insecure Unserialize Vulnerability in FLOW3
    Medium ghsa-m2hp-5x78-74mg >= 1.0.0, < 1.0.4 1.0.4
  2. Typo3 Arbitrary file upload and XML External Entity processing this entry
    Medium ghsa-2p4f-vc9q-r5vp >= 2.3.0, < 2.3.7, >= 3.0.0, < 3.0.1 2.3.7, 3.0.1
  3. Time-Based Information Disclosure Vulnerability in Flow
    Medium ghsa-r6mm-wmhf-849m >= 2.3.0, < 2.3.16, >= 3.0.0, < 3.0.10, >= 3.1.0, < 3.1.7, >= 3.2.0, < 3.2.7, >= 3.3.0, < 3.3.5 2.3.16, 3.0.10, 3.1.7, 3.2.7, 3.3.5
  4. Flow Bugfix Releases for Entity Security
    High ghsa-vh6j-wv25-8qxr >= 3.0.0, < 3.0.12, >= 3.1.0, < 3.1.10, >= 3.2.0, < 3.2.13, >= 3.3.0, < 3.3.13, >= 4.0.0, < 4.0.6 3.0.12, 3.1.10, 3.2.13, 3.3.13, 4.0.6
  5. TYPO3 Flow Cross-site scripting (XSS) vulnerability
    Medium CVE-2013-7082 >= 1.1.0, < 1.1.1, >= 2.0.0, < 2.0.1 1.1.1, 2.0.1

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.