Description
TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions failing to properly parse, sanitize and encode malicious rich-text content, the content rendering process in the website frontend is vulnerable to cross-site scripting. Corresponding rendering instructions via TypoScript functionality HTMLparser does not consider all potentially malicious HTML tag & attribute combinations per default. In default scenarios, a valid backend user account is needed to exploit this vulnerability. In case custom plugins used in the website frontend accept and reflect rich-text content submitted by users, no authentication is required. Update to TYPO3 versions 7.6.53 ELTS, 8.7.42 ELTS, 9.5.29, 10.4.19, 11.3.2 that fix the problem described.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TYPO3 | TYPO3.CMS | >= 7.0.0, < 7.6.53, >= 8.0.0, < 8.7.42, >= 9.0.0, < 9.5.29, >= 10.0.0, < 10.4.19, >= 11.0.0, < 11.3.2 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | typo3/cms | >= 10.0.0, < 10.4.19 | 10.4.19 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms | >= 11.0.0, < 11.3.2 | 11.3.2 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms | >= 9.0.0, < 9.5.29 | 9.5.29 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms | >= 8.0.0, < 8.7.42 | 8.7.42 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms | >= 7.0.0, < 7.6.53 | 7.6.53 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms-core | >= 7.0.0, < 7.6.53 | 7.6.53 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms-core | >= 8.0.0, < 8.7.42 | 8.7.42 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms-core | >= 10.0.0, < 10.4.19 | 10.4.19 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms-core | >= 11.0.0, < 11.3.2 | 11.3.2 | GHSA-c5c9-8c6m-727v |
| Packagist | typo3/cms-core | >= 9.0.0, < 9.5.29 | 9.5.29 | GHSA-c5c9-8c6m-727v |