Since version 2.3 anonymous users can use Issue Forms for Confluence to create issues in Jira.
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- Within Jira, you must ensure that Anonymous users are allowed to create Issues.
- Anonymous access to Confluence and the corresponding spaces must be active.
- Select "Edit" on the page with the "Issue Forms - create form"-macro.
- Add the "the Issue Forms - captcha"-macro.
- Save/Publish the page.
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