title: Open Redirect
description: This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, 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. 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. **Note:** Flask-Security is not maintained anymore.
problem types: Open Redirect
affected:
{
vendor: n/a
product: Flask-Security
versions:
version: 0, status: affected, lessThan: unspecified, versionType: custom
}
metrics:
cvssV3_1: [
version: 3.1
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
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: LOW
availabilityImpact: NONE
exploitCodeMaturity: PROOF_OF_CONCEPT
remediationLevel: UNAVAILABLE
reportConfidence: CONFIRMED
baseScore: 5.4
temporalScore: 5.1
baseSeverity: MEDIUM
temporalSeverity: MEDIUM
]