Package Instance
Lookup for vulnerable packages by Package URL.
GET /api/packages/77142?format=api
{ "url": "http://public2.vulnerablecode.io/api/packages/77142?format=api", "purl": "pkg:nuget/Sustainsys.Saml2@2.7.0", "type": "nuget", "namespace": "", "name": "Sustainsys.Saml2", "version": "2.7.0", "qualifiers": {}, "subpath": "", "is_vulnerable": true, "next_non_vulnerable_version": "2.9.2", "latest_non_vulnerable_version": "2.9.2", "affected_by_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/46047?format=api", "vulnerability_id": "VCID-v3bx-f3um-8ubc", "summary": "Authentication Bypass by Alternate Name\nSustainsys.Saml2 library adds SAML2P support to ASP.NET web sites, allowing the web site to act as a SAML2 Service Provider. \nPrior to versions 1.0.3 and 2.9.2, when a response is processed, the issuer of the Identity Provider is not sufficiently validated. This could allow a malicious identity provider to craft a Saml2 response that is processed as if issued by another identity provider. It is also possible for a malicious end user to cause stored state intended for one identity provider to be used when processing the response from another provider. An application is impacted if they rely on any of these features in their authentication/authorization logic: the issuer of the generated identity and claims; or items in the stored request state (AuthenticationProperties). This issue is patched in versions 2.9.2 and 1.0.3. The `AcsCommandResultCreated` notification can be used to add the validation required if an upgrade to patched packages is not possible.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2023-41890", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00135", "scoring_system": "epss", "scoring_elements": "0.33131", "published_at": "2026-06-06T12:55:00Z" }, { "value": "0.00135", "scoring_system": "epss", "scoring_elements": "0.33117", "published_at": "2026-06-05T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-41890" }, { "reference_url": "https://github.com/Sustainsys/Saml2", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/Sustainsys/Saml2" }, { "reference_url": "https://github.com/Sustainsys/Saml2/issues/712", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:28:58Z/" } ], "url": "https://github.com/Sustainsys/Saml2/issues/712" }, { "reference_url": "https://github.com/Sustainsys/Saml2/issues/713", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:28:58Z/" } ], "url": "https://github.com/Sustainsys/Saml2/issues/713" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41890", "reference_id": "CVE-2023-41890", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41890" }, { "reference_url": "https://github.com/advisories/GHSA-fv2h-753j-9g39", "reference_id": "GHSA-fv2h-753j-9g39", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-fv2h-753j-9g39" }, { "reference_url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-fv2h-753j-9g39", "reference_id": "GHSA-fv2h-753j-9g39", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" }, { "value": "Track", "scoring_system": "ssvc", "scoring_elements": "SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2024-10-15T17:28:58Z/" } ], "url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-fv2h-753j-9g39" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/67060?format=api", "purl": "pkg:nuget/Sustainsys.Saml2@2.9.2", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Sustainsys.Saml2@2.9.2" } ], "aliases": [ "CVE-2023-41890", "GHSA-fv2h-753j-9g39" ], "risk_score": 4.0, "exploitability": "0.5", "weighted_severity": "8.0", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-v3bx-f3um-8ubc" } ], "fixing_vulnerabilities": [ { "url": "http://public2.vulnerablecode.io/api/vulnerabilities/52534?format=api", "vulnerability_id": "VCID-caea-y5bm-zked", "summary": "Improper Authentication\nIn Saml2 Authentication Services for ASP.NET, and between, there is a vulnerability in how tokens are validated in some cases. Saml2 tokens are usually used as bearer tokens - a caller that presents a token is assumed to be the subject of the token. There is also support in the Saml2 protocol for issuing tokens that is tied to a subject through other means, e.g. holder-of-key where possession of a private key must be proved. The Sustainsys.Saml2 library incorrectly treats all incoming tokens as bearer tokens, even though they have another subject confirmation method specified. This could be used by an attacker that could get access to Saml2 tokens with another subject confirmation method than bearer. The attacker could then use such a token to create a log in session.", "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2020-5268", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00295", "scoring_system": "epss", "scoring_elements": "0.53159", "published_at": "2026-06-06T12:55:00Z" }, { "value": "0.00295", "scoring_system": "epss", "scoring_elements": "0.53151", "published_at": "2026-06-05T12:55:00Z" }, { "value": "0.00295", "scoring_system": "epss", "scoring_elements": "0.53089", "published_at": "2026-06-04T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-5268" }, { "reference_url": "https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/Sustainsys/Saml2/commit/e58e0a1aff2b1ead6aca080b7cdced55ee6d5241" }, { "reference_url": "https://github.com/Sustainsys/Saml2/issues/712", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/Sustainsys/Saml2/issues/712" }, { "reference_url": "https://www.nuget.org/packages/Sustainsys.Saml2", "reference_id": "", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://www.nuget.org/packages/Sustainsys.Saml2" }, { "reference_url": "https://www.nuget.org/packages/Sustainsys.Saml2/", "reference_id": "", "reference_type": "", "scores": [], "url": "https://www.nuget.org/packages/Sustainsys.Saml2/" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5268", "reference_id": "CVE-2020-5268", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-5268" }, { "reference_url": "https://github.com/advisories/GHSA-9475-xg6m-j7pw", "reference_id": "GHSA-9475-xg6m-j7pw", "reference_type": "", "scores": [ { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-9475-xg6m-j7pw" }, { "reference_url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-9475-xg6m-j7pw", "reference_id": "GHSA-9475-xg6m-j7pw", "reference_type": "", "scores": [ { "value": "6.5", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N" }, { "value": "MODERATE", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/Sustainsys/Saml2/security/advisories/GHSA-9475-xg6m-j7pw" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/77141?format=api", "purl": "pkg:nuget/Sustainsys.Saml2@1.0.2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-v3bx-f3um-8ubc" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Sustainsys.Saml2@1.0.2" }, { "url": "http://public2.vulnerablecode.io/api/packages/253399?format=api", "purl": "pkg:nuget/Sustainsys.Saml2@2.0.0-preview01", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Sustainsys.Saml2@2.0.0-preview01" }, { "url": "http://public2.vulnerablecode.io/api/packages/77142?format=api", "purl": "pkg:nuget/Sustainsys.Saml2@2.7.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-v3bx-f3um-8ubc" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Sustainsys.Saml2@2.7.0" } ], "aliases": [ "CVE-2020-5268", "GHSA-9475-xg6m-j7pw" ], "risk_score": 3.1, "exploitability": "0.5", "weighted_severity": "6.2", "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-caea-y5bm-zked" } ], "risk_score": "4.0", "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/Sustainsys.Saml2@2.7.0" }