CVE-2026-19418
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
TYPO3 CMS - Broken Access Control in Backend and Install Tool
The referrer enforcement introduced with TYPO3-CORE-SA-2020-006 (CVE-2020-11069) became ineffective in TYPO3 v13.0, where TYPO3 CMS started serving the backend and Install Tool applications from the site's main entry script instead of the dedicated typo3/ directory. Whether a request originated from the backend or Install Tool itself was determined by comparing the referrer against the directory of the entry script, which since then is the site root. As a consequence, requests originating from any script running on one of the TYPO3 instance's own domains, such as a frontend page, were accepted by backend routes and Install Tool endpoints. Attackers able to execute JavaScript on one of those domains, for instance by exploiting a cross-site scripting vulnerability, could invoke these endpoints via Fetch/XHR with the privileges of an authenticated victim's user session. This issue affects TYPO3 CMS versions 13.0.0-13.4.33 and 14.0.0-14.3.5.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
TYPO3 CMS
- Vendor
- TYPO3
- Product
- TYPO3 CMS
- Platforms
- Unknown
- Default status
unaffected- Package
- typo3/cms-backend
- Package collection
- https://packagist.org
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 13.0.0 | affected | semver | 13.4.34 | Unavailable | None listed |
| 14.0.0 | affected | semver | 14.3.6 | Unavailable | None listed |
TYPO3 CMS
- Vendor
- TYPO3
- Product
- TYPO3 CMS
- Platforms
- Unknown
- Default status
unaffected- Package
- typo3/cms-core
- Package collection
- https://packagist.org
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 13.0.0 | affected | semver | 13.4.34 | Unavailable | None listed |
| 14.0.0 | affected | semver | 14.3.6 | Unavailable | None listed |
TYPO3 CMS
- Vendor
- TYPO3
- Product
- TYPO3 CMS
- Platforms
- Unknown
- Default status
unaffected- Package
- typo3/cms-install
- Package collection
- https://packagist.org
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 14.0.0 | affected | semver | 14.3.6 | Unavailable | None listed |