An uncaught exception in the Bookmark Toolbar of TYPO3 CMS versions 11.0.0–11.5.47, 12.0.0–12.4.36, and 13.0.0–13.4.17 lets administrator‑level backend users trigger a denial‑of‑service condition in the backend user interface by saving manipulated data in the bookmark toolbar.
An exception is thrown from a function, but it is not caught.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Typo3 | Typo3 | 11.0.0 (including) | 11.5.48 (excluding) |
| Typo3 | Typo3 | 12.0.0 (including) | 12.4.37 (excluding) |
| Typo3 | Typo3 | 13.0.0 (including) | 13.4.18 (excluding) |