HIGH

GHSA-4542-p56h-8xww

Cross-Site Scripting (XSS) vulnerabilities in Neos

Quick fix

GHSA-4542-p56h-8xww — typo3/neos: upgrade to the fixed version with the command below.

composer require typo3/neos:^1.2.13

Details

It has been discovered that Neos is vulnerable to several XSS attacks. Through these vulnerabilities, an attacker could tamper with page rendering, redirect victims to a fake login page, or capture user credentials (such as cookies). With the potential backdoor upload an attacker could gain access to the server itself, to an extent mainly limited by the server setup.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/neos

Introduced in: 1.2.0Fixed in: 1.2.13

Fixcomposer require typo3/neos:^1.2.13

Packagist/typo3/neos

Introduced in: 2.0.0Fixed in: 2.0.4

Fixcomposer require typo3/neos:^2.0.4

References

https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/neos/2015-11-23.yaml[WEB]
https://github.com/mneuhaus/TYPO3.Neos[PACKAGE]
https://www.neos.io/blog/neos-sa-2015-002.html[WEB]