Vulnerability · Published Sep 9, 2025 · Assigned by TYPO3
CVE-2025-59014Denial of Service in TYPO3 Bookmark Toolbar
Medium 5.1
In plain English
A medium-severity security flaw in TYPO3 CMS from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)5.1Medium
Exploit odds (30 days)0.3%top 78.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | typo3/cms-backend | 12.4.37 | GHSA-xrcq-533q-8rxw |
| Packagist | typo3/cms-backend | 12.4.37 | GHSA-xrcq-533q-8rxw |
| Packagist | typo3/cms-backend | 13.4.18 | GHSA-xrcq-533q-8rxw |
Affected products (as reported)
Weakness: CWE-248 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References
- https://typo3.org/security/advisory/typo3-core-sa-2025-018 vendor-advisory