Package Instance

Multiple Cross-Site Scripting vulnerabilities in backend
Failing to properly encode user input, several backend components are susceptible to Cross-Site Scripting, allowing authenticated editors to inject arbitrary HTML or JavaScript.

Improper Authentication
Authentication Bypass in TYPO3 CMS.

Unauthenticated Path Disclosure
It has been discovered, that calling a PHP script which is delivered with TYPO3 for testing purposes, discloses the absolute server path to the TYPO3 installation.

Open Redirection in Login Handling
### Problem
It has been discovered that Login Handling is susceptible to open redirection which allows attackers redirecting to arbitrary content, and conducting phishing attacks. No authentication is required in order to exploit this vulnerability.

### Solution
Update to TYPO3 versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 that fix the problem described.

### Credits
Thanks to Alexander Kellner who reported this issue and to TYPO3 security team member Torben Hansen who fixed the issue.

### References
* [TYPO3-CORE-SA-2021-001](https://typo3.org/security/advisory/typo3-core-sa-2021-001)

TYPO3 CMS Stored Cross-Site Scripting via FileDumpController
> ### Meta
> * CVSS: `CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:F/RL:O/RC:C` (5.0)

### Problem
It has been discovered that the `FileDumpController` (backend and frontend context) is vulnerable to cross-site scripting when malicious files are displayed using this component. A valid backend user account is needed to exploit this vulnerability.

### Solution
Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix the problem described above.

### Credits
Thanks to Vautia who reported this issue and to TYPO3 core & security team member Oliver Hader who fixed the issue.

### References
* [TYPO3-CORE-SA-2022-009](https://typo3.org/security/advisory/typo3-core-sa-2022-009)
* [Vulnerability Report on huntr.dev](https://huntr.dev/bounties/51e9b709-193c-41fd-bd4a-833aaca0bd4e/) (embargoed +30 days)

TYPO3 Security Misconfiguration in Install Tool Cookie
It has been discovered that cookies created in the Install Tool are not hardened to be submitted only via HTTP. In combination with other vulnerabilities such as cross-site scripting it can lead to hijacking an active and valid session in the Install Tool.

TYPO3 may allow editors to change, create, or delete metadata of files not within their file mounts
It has been discovered, that editors with access to file meta data table could change, create or delete metadata of files which are not within their file mounts.

TYPO3 Cross-site Scripting vulnerability
Cross-site scripting (XSS) vulnerability in the typoLink function in TYPO3 6.2.x before 6.2.16 and 7.x before 7.6.1 allows remote authenticated editors to inject arbitrary web script or HTML via a link field.