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Database

Server side cross-site scripting In typo3/cms-form

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in typo3/cms-form

Problem

It has been discovered that the Form Designer backend module of the Form Framework is vulnerable to cross-site scripting. A valid backend user account with access to the form module is needed to exploit this vulnerability.

Solution

Update to TYPO3 versions 10.4.14 or 11.1.1 that fix the problem described.

Credits

Thanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue.

References

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Component
Affected version
Patched versions

Aliases

1. CVE-2021-213582. NVD-2021-213583. OSV-2021-213584. GHSA-x79j-wgqv-g8h25. GCVE-2021-21358

References

1. https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-x79j-wgqv-g8h22. https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-21358.yaml3. https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-21358.yaml4. https://packagist.org/packages/typo3/cms-form5. https://typo3.org/security/advisory/typo3-core-sa-2021-004

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