title: Open Redirect
description: This affects all versions of package Flask-User. When using the make_safe_url function, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as /////evil.com/path or \\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False.
problem types: Open Redirect
affected:
{
product: Flask-User
vendor: n/a
versions:
lessThan: unspecified, status: affected, version: 0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.4
baseSeverity: MEDIUM
confidentialityImpact: LOW
exploitCodeMaturity: PROOF_OF_CONCEPT
integrityImpact: LOW
privilegesRequired: NONE
remediationLevel: UNAVAILABLE
reportConfidence: CONFIRMED
scope: UNCHANGED
temporalScore: 5.1
temporalSeverity: MEDIUM
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C
version: 3.1
]