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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLWZqaDMtZzhncS05cTky
Cross-Site Scripting in Content Preview
- Status: DRAFT
It has been discovered that database fields used as descriptionColumn are vulnerable to cross-site scripting when their content gets previewed in the page module. A valid backend user account is needed to exploit this vulnerability.
Update to TYPO3 versions 10.4.14, 11.1.1 that fix the problem described.
Thanks to Richie Lee who reported this issue and to TYPO3 framework merger Andreas Fernandez who fixed the issue.
Source: GitHub Advisory Database
Published: over 2 years ago
Updated: 8 months ago
Identifiers: GHSA-fjh3-g8gq-9q92, CVE-2021-21340
Fixed in: 11.1.1, 10.4.14