Description
An authorization bypass in MISP’s EventsController::importModule() allowed authenticated users or read-only API keys with event view access to persist data to events they were not allowed to modify. When an import module returned results in the misp_standard format, the write path did not verify event modification rights before saving the module output. This could allow a view-only user to inject or alter event data, impacting the integrity of MISP event content. The issue was fixed by enforcing the same modification-rights check used by related module result handling paths before processing misp_standard imports.
Problem types
Product status
Any version
Credits
Sami Mokaddem
Berk Polat
Claude Opus 4.8 (1M context) aka Claudy
References
github.com/...ommit/d0725fc34fda256cc57e5a8f0543cd541033e008