Critical (9.8) in twiki twiki. EPSS 4.9% chance of exploitation in the next 30 days.
TWiki before 5.1.4 allows remote attackers to execute arbitrary shell commands by sending a crafted '%MAKETEXT{}%' parameter value containing Perl backtick characters.
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
4.9% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)