CVE-2018-1000885
PHKP version including commit 88fd9cfdf14ea4b6ac3e3967feea7bcaabb6f03b contains a Improper Neutralization of Special Elements used in a Command (‘Command Injection’) vulnerability in function pgp_exec() phkp.php:98 that can result in It is possible to manipulate gpg-keys or execute commands remotely. This attack appear to be exploitable via HKP-Api: /pks/lookup?search.
Source: CVE-2018-1000885