Description
Multiple cross-site scripting (XSS) vulnerabilities in the Backend subcomponent in TYPO3 4.0.13 and earlier, 4.1.x before 4.1.13, 4.2.x before 4.2.10, and 4.3.x before 4.3beta2 allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 5.0 | typo3-src | 4.2.5-1+lenny2 | DSA-1926-1 |
| Debian 4.0 | typo3-src | 4.0.2+debian-9 | DSA-1926-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | typo3/cms-backend | <= 4.0.13 | — | GHSA-g857-p997-wx7w |
| Packagist | typo3/cms-backend | >= 4.1.0, < 4.1.13 | 4.1.13 | GHSA-g857-p997-wx7w |
| Packagist | typo3/cms-backend | >= 4.2.0, < 4.2.10 | 4.2.10 | GHSA-g857-p997-wx7w |
| Packagist | typo3/cms-backend | >= 4.3alpha1, < 4.3beta2 | 4.3beta2 | GHSA-g857-p997-wx7w |
Advisories 1
- DSA-1926-1 typo3-src - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- typo3-backend-xss(53918) vdb-entry
- http://typo3.org/teams/security/security-bulletins/typo3-sa-2009-016/
- 37122 third-party-advisory
- [oss-security] 20091023 Re: CVE id request: typo3 mailing-list
- [oss-security] 20091023 Re: CVE id request: typo3 mailing-list
- ADV-2009-3009 vdb-entry
- 36801 vdb-entry