Provide references for CVE-2020-26260.
Where can I find more information about CVE-2020-26260?
References are available at: https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr, https://bookstackapp.com/blog/beta-release-v0-30-5/, https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5.