title: Dev Blog v1.0 - ATO
description: Dev blog v1.0 allows to exploit an account takeover through the "user" cookie. With this, an attacker can access any user's session just by knowing their username.
problem types: CWE-639 Authorization Bypass Through User-Controlled Key
affected:
{
defaultStatus: unaffected
product: Dev Blog
vendor: Dev Blog
versions:
status: affected, version: 1.0
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 9.1
baseSeverity: CRITICAL
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL