Loomio version 2.22.0 allows executing arbitrary commands on the server. This is possible because the application is vulnerable to OS Command Injection.
https://github.com/loomio/loomio/commit/6bc5429bfb5a9c7c811a4487d97ea54a8b23a0fa#diff-b9a7e6b3dfb0fd855c11198a7c53e6f6f90945f28c78cc5dbd960d04d5d28203
https://github.com/loomio/loomio
https://fluidattacks.com/advisories/stones
Source: Mitre, NVD
Published: 2024-02-20
Updated: 2026-04-20
Base Score: 10
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Severity: Critical
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.0454