{"vulnerability": "cve-2021-2338", "sightings": [{"uuid": "8dbd6a1d-6867-4547-9339-603b5c8cbcff", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-23385", "type": "seen", "source": "https://t.me/cibsecurity/47409", "content": "\u203c CVE-2021-23385 \u203c\n\nThis 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.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-08-02T18:17:51.000000Z"}, {"uuid": "87c377c8-aefa-4b10-b931-877609fe5c51", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-23383", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3720", "content": "#exploit\nCVE-2021-23383:\nThe package handlebars <4.7.7 are vulnerable to Prototype Pollution when selecting certain compiling options to compile templates coming from an untrusted source (PoC)\nhttps://snyk.io/vuln/SNYK-JS-HANDLEBARS-1279029\n+ Check the conditions for exploiting CVE-2021-23383 through the handlebars library version assessment:\nhttps://github.com/dn9uy3n/Check-CVE-2021-23383", "creation_timestamp": "2021-06-29T12:03:01.000000Z"}, {"uuid": "3f79dea7-76c7-4305-80f1-8609c661eacb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23383", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3597", "content": "", "creation_timestamp": "2026-09-11T03:00:05.418384Z"}, {"uuid": "7f2a9c90-d0cb-4ef4-bf7f-c362347e8496", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23383", "type": "seen", "source": "https://t.me/cissp/3597", "content": "", "creation_timestamp": "2026-09-01T17:00:47.062589Z"}, {"uuid": "863de9ed-08f5-495c-b405-8caffa133999", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-23382", "type": "published-proof-of-concept", "source": "https://github.com/advisories/GHSA-566m-qj78-rww5", "content": "", "creation_timestamp": "2022-01-07T00:21:36.000000Z"}]}