GHSA-JFMM-MJCP-8WQ2 Vikjuna: IDOR in Task Attachment ReadOne Allows Cross-Project File Access and Deletion

Summary TaskAttachment.ReadOne queries attachments by ID only WHERE id = ?, ignoring the task ID from the URL path. The permission check in CanRead validates access to the task specified in the URL, but ReadOne loads a different attachment that may belong to a task in another project. This allows...