Vulnerability advisory

GHSA-989h-wv8x-933p

TYPO3 cross-site scripting (XSS)

Published May 14, 2022Updated Dec 7, 2024OSV record ↗

Also known as CVE-2015-5956

Severity

Severity not reported.

Affected versions

typo3/cms Packagist

All typo3/cms advisories →

Affected	Fixed in
`6.0` to before 6.2.15	`6.2.15`Advisories →
Also listed as affected (16) `6.2.0` `6.2.1` `6.2.10` `6.2.10-rc1` `6.2.11` `6.2.12` `6.2.13` `6.2.14` `6.2.2` `6.2.3` `6.2.4` `6.2.5` `6.2.6` `6.2.7` `6.2.8` `6.2.9`
`7.0` to before 7.4.0	`7.4.0`Advisories →
Also listed as affected (7) `7.0.0` `7.0.1` `7.0.2` `7.1.0` `7.2.0` `7.3.0` `7.3.1`
`4.0` through `4.5.40`	No fix listed

Description

The sanitizeLocalUrl function in TYPO3 6.x before 6.2.15, 7.x before 7.4.0, 4.5.40, and earlier allows remote authenticated users to bypass the XSS filter and conduct cross-site scripting (XSS) attacks via a base64 encoded data URI, as demonstrated by the (1) returnUrl parameter to show_rechis.php and the (2) redirect_url parameter to index.php.

GHSA-989h-wv8x-933p

Affected versions

typo3/cms Packagist

Description

References