A vulnerability classified as critical has been found in Elvish up to 0.13.x. Affected is an unknown part of the component Web UI Backend. Upgrading to version 0.14.0 eliminates this vulnerability. Applying the patch ccc2750037bbbfafe9c1b7a78eadd3bd16e81fe5 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.