Description
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.
Problem types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Product status
13.0.0 (semver) before 13.4.31
14.0.0 (semver) before 14.3.3
Credits
Jan Kahmen
Sanjay Singh Jhala
Oliver Hader
References
typo3.org/security/advisory/typo3-core-sa-2026-010
github.com/...ommit/2e96dd0e9fab7ad877b741fb9f6fc645b4270a3e (Git commit of main branch)
github.com/...ommit/8004b91a5951cfe01dda8554f77d0daa82d6b899 (Git commit of 13.4 branch)