High · published May 16, 2023
CVSS calls it high at 8.8. It sits in the 99.1th percentile for exploit probability.
Jenkins File Parameter Plugin 285.v757c5b_67a_c25 and earlier does not restrict the name (and resulting uploaded file name) of Stashed File Parameters, allowing attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system with attacker-specified content.