{"url":"http://public2.vulnerablecode.io/api/packages/197467?format=json","purl":"pkg:composer/symfony/security-http@4.3.6","type":"composer","namespace":"symfony","name":"security-http","version":"4.3.6","qualifiers":{},"subpath":"","is_vulnerable":true,"next_non_vulnerable_version":"7.1.8","latest_non_vulnerable_version":"7.2.0-BETA1","affected_by_vulnerabilities":[{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/50567?format=json","vulnerability_id":"VCID-9qrr-z4mp-vyfp","summary":"User enumeration leak using switch user functionality in Symfony\nAn issue was discovered in Symfony 4.2.0 to 4.2.11 and 4.3.0 to 4.3.7. The ability to enumerate users was possible due to different handling depending on whether the user existed when making unauthorized attempts to use the switch users functionality. This is related to 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18886"},{"reference_url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*","reference_id":"cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*","reference_type":"","scores":[],"url":"https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*"},{"reference_url":"https://github.com/advisories/GHSA-4vpc-5jx4-cfqg","reference_id":"GHSA-4vpc-5jx4-cfqg","reference_type":"","scores":[{"value":"MODERATE","scoring_system":"cvssv3.1_qr","scoring_elements":""}],"url":"https://github.com/advisories/GHSA-4vpc-5jx4-cfqg"}],"fixed_packages":[{"url":"http://public2.vulnerablecode.io/api/packages/78844?format=json","purl":"pkg:composer/symfony/security-http@4.3.8","is_vulnerable":true,"affected_by_vulnerabilities":[{"vulnerability":"VCID-bdhj-np35-sybt"},{"vulnerability":"VCID-e71e-d4tr-wqgz"},{"vulnerability":"VCID-v4rq-bsry-puct"}],"resource_url":"http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@4.3.8"}],"aliases":["CVE-2019-18886","GHSA-4vpc-5jx4-cfqg"],"risk_score":3.1,"exploitability":"0.5","weighted_severity":"6.2","resource_url":"http://public2.vulnerablecode.io/vulnerabilities/VCID-9qrr-z4mp-vyfp"},{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/19769?format=json","vulnerability_id":"VCID-bdhj-np35-sybt","summary":"Symfony potential Cross-site Scripting vulnerabilities in CodeExtension filters\nSymfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 2.0.0, 5.0.0, and 6.0.0 and prior to versions 4.4.51, 5.4.31, and 6.3.8, some Twig filters in CodeExtension use `is_safe=html` but don't actually ensure their input is safe. As of versions 4.4.51, 5.4.31, and 6.3.8, Symfony now escapes the output of the affected filters.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2023-46734","reference_id":"","reference_type":"","scores":[{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.83967","published_at":"2026-04-02T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.84047","published_at":"2026-04-18T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.84045","published_at":"2026-04-16T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.84021","published_at":"2026-04-13T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.84025","published_at":"2026-04-12T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.84032","published_at":"2026-04-11T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.84016","published_at":"2026-04-09T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.8401","published_at":"2026-04-08T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.83986","published_at":"2026-04-07T12:55:00Z"},{"value":"0.02089","scoring_system":"epss","scoring_elements":"0.83982","published_at":"2026-04-04T12:55:00Z"},{"value":"0.02419","scoring_system":"epss","scoring_elements":"0.85172","published_at":"2026-04-29T12:55:00Z"},{"value":"0.02419","scoring_system":"epss","scoring_elements":"0.85143","published_at":"2026-04-21T12:55:00Z"},{"value":"0.02419","scoring_system":"epss","scoring_elements":"0.85166","published_at":"2026-04-24T12:55:00Z"},{"value":"0.02419","scoring_system":"epss","scoring_elements":"0.85175","published_at":"2026-04-26T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2023-46734"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46734","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-46734"},{"reference_url":"https://github.com/symfony/symfony","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/symfony/symfony"},{"reference_url":"https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/"}],"url":"https://github.com/symfony/symfony/commit/5d095d5feb1322b16450284a04d6bb48d1198f54"},{"reference_url":"https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/"}],"url":"https://github.com/symfony/symfony/commit/9da9a145ce57e4585031ad4bee37c497353eec7c"},{"reference_url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html","reference_id":"","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""},{"value":"Track","scoring_system":"ssvc","scoring_elements":"SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-03T15:11:26Z/"}],"url":"https://lists.debian.org/debian-lts-announce/2023/11/msg00019.html"},{"reference_url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055774","reference_id":"1055774","reference_type":"","scores":[],"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1055774"},{"reference_url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46734","reference_id":"CVE-2023-46734","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-46734"},{"reference_url":"https://symfony.com/cve-2023-46734","reference_id":"CVE-2023-46734","reference_type":"","scores":[{"value":"6.1","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://symfony.com/cve-2023-46734"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46734.yaml","reference_id":"CVE-2023-46734.YAML"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user enumeration using Guard or the new Authenticator-based Security\nDescription\n-----------\n\nThe ability to enumerate users was possible without relevant permissions due to different exception messages depending on whether the user existed or not. It was also possible to enumerate users by using a timing attack, by comparing time elapsed when authenticating an existing user and authenticating a non-existing user.\n\nResolution\n----------\n\nWe now ensure that 403s are returned whether the user exists or not if the password is invalid or if the user does not exist.\n\nThe patch for this issue is available [here](https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011) for branch 3.4.\n\nCredits\n-------\n\nI would like to thank James Isaac and Mathias Brodala for reporting the issue and Robin Chalas for fixing the issue.","references":[{"reference_url":"https://api.first.org/data/v1/epss?cve=CVE-2021-21424","reference_id":"","reference_type":"","scores":[{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50017","published_at":"2026-04-01T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.5003","published_at":"2026-04-29T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50076","published_at":"2026-04-26T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50071","published_at":"2026-04-24T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50084","published_at":"2026-04-21T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50113","published_at":"2026-04-18T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50112","published_at":"2026-04-16T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50068","published_at":"2026-04-13T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50072","published_at":"2026-04-12T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50098","published_at":"2026-04-11T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50081","published_at":"2026-04-09T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50088","published_at":"2026-04-08T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50033","published_at":"2026-04-07T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50083","published_at":"2026-04-04T12:55:00Z"},{"value":"0.00266","scoring_system":"epss","scoring_elements":"0.50055","published_at":"2026-04-02T12:55:00Z"}],"url":"https://api.first.org/data/v1/epss?cve=CVE-2021-21424"},{"reference_url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21424","reference_id":"","reference_type":"","scores":[],"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21424"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/lexik/jwt-authentication-bundle/CVE-2021-21424.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/lexik/jwt-authentication-bundle/CVE-2021-21424.yaml"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/maker-bundle/CVE-2021-21424.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/maker-bundle/CVE-2021-21424.yaml"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2021-21424.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security/CVE-2021-21424.yaml"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-guard/CVE-2021-21424.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-guard/CVE-2021-21424.yaml"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2021-21424.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2021-21424.yaml"},{"reference_url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2021-21424.yaml","reference_id":"","reference_type":"","scores":[{"value":"5.3","scoring_system":"cvssv3.1","scoring_elements":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"value":"MODERATE","scoring_system":"generic_textual","scoring_elements":""}],"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2021-21424.yaml"},{"reference_url":"https://github.com/symfony/symfony","reference_id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Advisory: Symfony http-security has authentication bypass\n## Withdrawn Advisory\nThis advisory has been withdrawn because the report is not part of a valid vulnerability. This link is maintained to preserve external references. For more information, see advisory-database/pull/5046.\n\n## Original Description\nIn Symfony, a security vulnerability was identified in the FormLoginAuthenticator component, where it failed to adequately handle cases where the username or password field of a login request is empty. This flaw could lead to various security risks, including improper authentication logic handling or denial of 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