Cross-Site Scripting in Bootstrap Package
Problem
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.
The following templates are affected by the vulnerability:
Resources/Private/Partials/ContentElements/Carousel/Item/CallToAction.htmlResources/Private/Partials/ContentElements/Carousel/Item/Header.htmlResources/Private/Partials/ContentElements/Carousel/Item/Text.htmlResources/Private/Partials/ContentElements/Carousel/Item/TextAndImage.htmlResources/Private/Partials/ContentElements/Header/SubHeader.html
Users of the extension, who have overwritten the affected templates with custom code must manually apply the security fix as shown in this Git commit.
Solution
Update to version 7.1.2, 8.0.8, 9.0.4, 9.1.3, 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/.
Credits
Thanks to TYPO3 security team member Oliver Hader who reported and fixed the issue.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | bk2k/bootstrap-package | >= 7.1.0, < 7.1.2, >= 8.0.0, < 8.0.8, >= 9.0.0, < 9.0.4, >= 9.1.0, < 9.1.3, >= 10.0.0, < 10.0.10, >= 11.0.0, < 11.0.3 | 7.1.2, 8.0.8, 9.0.4, 9.1.3, 10.0.10, 11.0.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
bk2k/bootstrap-package- Disclosed
- 29.04.2021
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-p48w-vf3c-rqjx - CC BY 4.0
Vulnerability history: bk2k/bootstrap-package
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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