Description
Cross-site scripting (XSS) vulnerability in the Install Tool in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote attackers 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 6.0 | typo3-src | 4.3.9+dfsg1-1+squeeze5 | DSA-2537-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | typo3/cms | >= 4.5, < 4.5.19 | 4.5.19 | GHSA-p9wg-jvj4-cx26 |
| Packagist | typo3/cms | >= 4.6, < 4.6.12 | 4.6.12 | GHSA-p9wg-jvj4-cx26 |
| Packagist | typo3/cms | >= 4.7, < 4.7.4 | 4.7.4 | GHSA-p9wg-jvj4-cx26 |
Advisories 1
- DSA-2537-1 typo3-src - several Debian Security (DSA / DLA) · Mar 9, 2026