MEDIUM

GHSA-cg4m-qjjp-7497

TYPO3 Cross-Site Scripting in link validator component

Quick fix

GHSA-cg4m-qjjp-7497 — typo3/cms: upgrade to the fixed version with the command below.

composer require typo3/cms:^6.2.18

Details

Failing to sanitize content from editors, the link validator component is susceptible to Cross-Site Scripting. A valid editor account with access to content which is scanned by the link validator component is required to exploit this vulnerability.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/typo3/cms

Introduced in: 6.2.0Fixed in: 6.2.18

Fixcomposer require typo3/cms:^6.2.18

Packagist/typo3/cms

Introduced in: 7.6.0Fixed in: 7.6.3

Fixcomposer require typo3/cms:^7.6.3

References

https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2016-02-16-2.yaml[WEB]
https://typo3.org/security/advisory/typo3-core-sa-2016-002[WEB]
https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-002[WEB]