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.
https://typo3.org/security/advisory/typo3-core-sa-2026-010
https://github.com/TYPO3/typo3/commit/8004b91a5951cfe01dda8554f77d0daa82d6b899
https://github.com/TYPO3/typo3/commit/2e96dd0e9fab7ad877b741fb9f6fc645b4270a3e
Published: 2026-06-09
Updated: 2026-06-09
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 5.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
Base Score: 5.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N
Severity: Medium
EPSS: 0.00044