Citrix NetScaler VPX through NS12.0 53.13.nc allows an SSRF attack via the /rapi/read_url URI by an authenticated attacker who has a webapp account. The attacker can gain access to the nsroot account, and execute remote commands with root privileges.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.014
EPSS Ranking 79.7%