CitrusDB 0.3.6 and earlier generates easily predictable MD5 hashes of the user name for the id_hash cookie, which allows remote attackers to bypass authentication and gain privileges by calculating the MD5 checksum of the user name combined with the "boogaadeeboo" string, which is hard-coded in the $hidden_hash variable.
Severity
CVSS 3.1
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
4.7% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)