| Package | Affected versions | Patched versions |
|---|---|---|
| typo3/cms-core | ≥ 8.0.0, < 8.7.21≥ 9.0.0, < 9.5.2 | 8.7.219.5.2 |
Failing to properly encode user input, online media asset rendering (*.youtube and *.vimeo files) is vulnerable to cross-site scripting. A valid backend user account or write access on the server system (e.g. SFTP) is needed in order to exploit this vulnerability.
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