Critical (9.8) in chancms chancms. EPSS 0.5% chance of exploitation in the next 30 days.
A template injection vulnerability in the /vip/v1/file/save component of ChanCMS v3.3.4 allows attackers to execute arbitrary code via a crafted POST request.
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
0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)