# Typo3 Security Misconfiguration in Frontend Session Handling

Source: https://junglewise.ai/threats/typo3-security-misconfiguration-in-frontend-session-handling-3a4d0450  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2024-06-05  
License: CC BY 4.0 with a link back

Severity: info · Published 2024-06-05

Typo3 Security Misconfiguration in Frontend Session Handling

Technologies: [typo3/cms (Packagist)](https://junglewise.ai/threats/technologies/packagist-typo3-cms). Vendors: [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 5 June 2024.

**Which products and versions are affected?** typo3/cms (Packagist) ECOSYSTEM:introduced=8.0.0,fixed=8.7.27.

**Is there a fix for This vulnerability?** Yes. typo3/cms (Packagist): upgrade to 8.7.27 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run typo3/cms (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- typo3/cms (Packagist): upgrade to 8.7.27 or later

  ```sh
  composer require typo3/cms:^8.7.27
  ```


## Affected products

- typo3/cms (Packagist) ECOSYSTEM:introduced=8.0.0,fixed=8.7.27

## Related threats

- [TYPO3 Denial of Service in Online Media Asset Handling](https://junglewise.ai/threats/typo3-denial-of-service-in-online-media-asset-handling-4f64c9d7)
- [TYPO3 Information Disclosure in Install Tool](https://junglewise.ai/threats/typo3-information-disclosure-in-install-tool-02427278)
- [TYPO3 Security Misconfiguration in Install Tool Cookie](https://junglewise.ai/threats/typo3-security-misconfiguration-in-install-tool-cookie-06a36c1d)
- [TYPO3 Cross-Site Scripting in Frontend User Login](https://junglewise.ai/threats/typo3-cross-site-scripting-in-frontend-user-login-0ade5852)
- [TYPO3 Cross-Site Scripting in Backend Modal Component](https://junglewise.ai/threats/typo3-cross-site-scripting-in-backend-modal-component-f9e5f2a1)