Vulnerability advisory
GHSA-8c25-vj2w-p72j
TYPO3 Cross-Site Scripting in Frontend User Login
Severity
- CVSS 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected versions
| Affected | Fixed in |
|---|---|
8.0.0 to before 8.7.21 | 8.7.21Advisories → |
9.0.0 to before 9.5.2 | 9.5.2Advisories → |
7.1.0 to before 7.6.32 | 7.6.32Advisories → |
Description
Failing to properly encode user input, login status display is vulnerable to cross-site scripting in the website frontend. A valid user account is needed in order to exploit this vulnerability - either a backend user or a frontend user having the possibility to modify their user profile.
Template patterns that are affected are
- ###FEUSER_[fieldName]### using system extension felogin
- for regular frontend rendering (pattern can be defined individually using TypoScript setting config.USERNAME_substToken)