` is a whitelisted element), but the ` src="" title="""" alt` sequence would then be matched and replaced by ` alt` with the above regex, resulting in:
-```html
-
-```
-Where the `someattr` attribute has broken out of the `alt` attribute and became part of the DOM. This allows for arbitrary HTML attributes to be added to any element whitelisted by the sanitization filter.
-
-This is limited, however, in that the affected frame is [using a nonce-based CSP](https://gitlab.com/gitlab-org/gitlab-vscode-extension/-/blob/main/src/webview/public/index.html#L5) that restricts inline event handlers and `javascript:` URIs. If it were possible to inject arbitrary HTML elements as well, it could be possible to inject `