High (8.8) in gibbonedu gibbon. EPSS 52% chance of exploitation in the next 30 days.
Gibbon through 26.0.00 allows remote authenticated users to conduct PHP deserialization attacks via columnOrder in a POST request to the modules/System%20Admin/import_run.php&type=externalAssessment&step=4 URI.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
52% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)