Provide references for CVE-2020-26210.
Where can I find more information about CVE-2020-26210?
References are available at: https://github.com/BookStackApp/BookStack/security/advisories/GHSA-7p2j-4h6p-cq3h, https://github.com/BookStackApp/BookStack/commit/349162ea139556b2d25e09e155cec84e21cc9227, https://bookstackapp.com/blog/beta-release-v0-30-4/, https://github.com/BookStackApp/BookStack/releases/tag/v0.30.4.