| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| typo3/cms | composer | >= 6.2.0, < 6.2.16 | 6.2.16 |
The vulnerability stems from TYPO3's flashplayer component (Flvplayer) not validating external domains. The FlashPlayerRenderer class is directly responsible for rendering Flash content in TYPO3 CMS. The render() method would logically process the media URL parameter without proper domain validation in affected versions, enabling external Flash embedding. This matches the advisory's description of missing validation in flash/media handling. While exact code isn't available, TYPO3's architecture and security bulletin's reference to Flvplayer subcomponent strongly indicate this as the vulnerable entry point.
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