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Published: 23/03/2021 Updated: 26/03/2021

CVSS v2 Base Score: 3.5 | Impact Score: 2.9 | Exploitability Score: 6.8

CVSS v3 Base Score: 5.4 | Impact Score: 2.7 | Exploitability Score: 2.3

VMScore: 312

Vector: AV:N/AC:M/Au:S/C:N/I:P/A:N

TYPO3 is an open source PHP based web content management system. In TYPO3 prior to 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .

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CWE-79 https://typo3.org/security/advisory/typo3-core-sa-2021-007 https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-fjh3-g8gq-9q92 https://packagist.org/packages/typo3/cms-backend https://nvd.nist.gov

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CVE-2021-21340

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