onefilecms.php in OneFileCMS through 2017-10-08 might allow attackers to read arbitrary files via the i and f parameters, as demonstrated by ?i=etc/&f=passwd&p=raw_view for the /etc/passwd file.
Severity
CVSS 3.0
9.8 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)