title: yiisoft/yii before v1.1.27 vulnerable to Remote Code Execution if the application calls `unserialize()` on arbitrary user input
description: `yiisoft/yii` before version 1.1.27 are vulnerable to Remote Code Execution (RCE) if the application calls `unserialize()` on arbitrary user input. This has been patched in 1.1.27.
problem types: CWE-502: Deserialization of Untrusted Data
affected:
{
vendor: yiisoft
product: yii
versions:
version: < 1.1.27, status: affected
}
metrics:
cvssV3_1: [
version: 3.1
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
]