{"containers": {"cna": {"affected": [{"product": "MyBB", "vendor": "MyBB", "versions": [{"status": "affected", "version": "< 1.8.24"}]}], "descriptions": [{"lang": "en", "value": "In MyBB before version 1.8.24, the custom MyCode (BBCode) for the visual editor doesn't escape input properly when rendering HTML, resulting in a DOM-based XSS vulnerability. The weakness can be exploited by pointing a victim to a page where the visual editor is active (e.g. as a post or Private Message) and operates on a maliciously crafted MyCode message. This may occur on pages where message content is pre-filled using a GET/POST parameter, or on reply pages where a previously saved malicious message is quoted. 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