CVE-2026-21879 | kanboard up to 1.2.48 filter_var url redirect (GHSA-mhv9-7m9w-7hcq)
A vulnerability classified as problematic was found in kanboard up to 1.2.48. Impacted is the function filter_var. Such manipulation of the argument url leads to open redirect.
This vulnerability is traded as CVE-2026-21879. The attack may be launched remotely. There is no exploit available.
Upgrading the affected component is advised.