CVE-2021-26794

9.8 criticalEPSS 1.6%

Critical (9.8) in frogcms project frogcms. EPSS 1.6% chance of exploitation in the next 30 days.

Privilege escalation in 'upload.php' in FrogCMS SentCMS v0.9.5 allows attacker to execute arbitrary code via crafted php file.

Severity

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2021-09-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19