CVE-2021-21365: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

April 29, 2021

Bootstrap Package is a theme for TYPO3. It has been discovered that rendering content in the website frontend is vulnerable to cross-site scripting. A valid backend user account is needed to exploit this vulnerability. Users of the extension, who have overwritten the affected templates with custom code must manually apply the security fix. Update to version 7.1.2, 8.0.8, 9.1.4, 10.0.10 or 11.0.3 of the Bootstrap Package that fix the problem described. Updated version are available from the TYPO3 extension manager, Packagist and at https://extensions.typo3.org/extension/download/bootstrap_package/.

References

github.com/advisories/GHSA-p48w-vf3c-rqjx
github.com/benjaminkott/bootstrap_package/commit/de3a568fc311d6712d9339643e51e8627c80530b
github.com/benjaminkott/bootstrap_package/security/advisories/GHSA-p48w-vf3c-rqjx
nvd.nist.gov/vuln/detail/CVE-2021-21365
typo3.org/security/advisory/typo3-ext-sa-2021-007

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