CVE-2026-47348: TYPO3 CMS - Cross-Site Scripting in Indexed Search
Problem Editors with access to create or modify page content were able to include HTML markup in page titles that were stored in the search index without sanitization. When displayed in frontend search results via the Indexed Search plugin, these titles were rendered without proper output encoding, resulting in a Cross-Site Scripting vulnerability.
Solution Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described.
Credits TYPO3 CMS thanks Jan Kahmen and Sanjay Singh Jhala for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.
Resources TYPO3-CORE-SA-2026-010
Other sources
Editors with access to create or modify page content were able to include HTML markup in page titles that were stored in the search index without sanitization. When displayed in frontend search results via the Indexed Search plugin, these titles were rendered without proper output encoding, resulting in a Cross-Site Scripting vulnerability. This issue affects TYPO3 CMS versions 13.0.0-13.4.30 and 14.0.0-14.3.2.
— NVD
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
composer/typo3/cms-indexed-searchto a version that resolves this vulnerability.Fixed in 14.3.3 - Upgrade
Upgrade
composer/typo3/cms-indexed-searchto a version that resolves this vulnerability.Fixed in 13.4.31 - Upgrade
Upgrade
composer/typo3/cms-coreto a version that resolves this vulnerability.Fixed in 14.3.3 - Upgrade
Upgrade
composer/typo3/cms-coreto a version that resolves this vulnerability.Fixed in 13.4.31
Event History
Frequently Asked Questions
What is the severity of CVE-2026-47348?
The severity of CVE-2026-47348 is rated as medium with a score of 5.1.
How do I fix CVE-2026-47348?
To fix CVE-2026-47348, ensure that HTML markup in page titles is properly sanitized before being indexed and displayed.
Who is affected by CVE-2026-47348?
CVS-2026-47348 affects editors with permissions to create or modify page content in TYPO3 CMS.
What type of vulnerability is CVE-2026-47348?
CVE-2026-47348 is a Cross-Site Scripting (XSS) vulnerability in TYPO3 CMS.
When was CVE-2026-47348 published?
CVE-2026-47348 was published on June 9, 2026.