CVE-2023-49104

2023-11-2100:00:00

mitre

www.cve.org

cve-2023-49104

owncloud

oauth2

subdomains

validation bypass

redirect url

top level domain

CVSS3

8.7

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.001

Percentile

17.0%

JSON

An issue was discovered in ownCloud owncloud/oauth2 before 0.6.1, when Allow Subdomains is enabled. An attacker is able to pass in a crafted redirect-url that bypasses validation, and consequently allows an attacker to redirect callbacks to a Top Level Domain controlled by the attacker.