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MEDIUM

GHSA-jg55-3q6h-2ccf

Typo3 Backend XSS Vulnerability

Quick fix

GHSA-jg55-3q6h-2ccf — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^4.0.12

Details

An Information Disclosure vulnerability in jumpUrl mechanism, used to track access on web pages and provided files, allows a remote attacker to read arbitrary files on a host.

The expected value of a mandatory hash secret, intended to invalidate such requests, is exposed to remote users allowing them to bypass access control by providing the correct value.

There's no authentication required to exploit this vulnerability. The vulnerability allows to read any file, the web server user account has access to.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/cms
Introduced in: 3.3.0

No fixed version published yet for typo3/cms (composer). Pin to a known-safe version or switch to an alternative.

Packagist/typo3/cms
Introduced in: 4.0Fixed in: 4.0.12
Fixcomposer require typo3/cms:^4.0.12
Packagist/typo3/cms
Introduced in: 4.1.0Fixed in: 4.1.10
Fixcomposer require typo3/cms:^4.1.10
Packagist/typo3/cms
Introduced in: 4.2.0Fixed in: 4.2.6
Fixcomposer require typo3/cms:^4.2.6
Packagist/typo3/cms

No fixed version published yet for typo3/cms (composer). Pin to a known-safe version or switch to an alternative.

References