Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/41358?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/41358?format=api", "vulnerability_id": "VCID-82d1-8yn8-sydv", "summary": "Cross site scripting via HTML attributes in the back end\nIt is possible for untrusted users to inject malicious code into HTML attributes in the back end, which will be executed both in the element preview (back end) and on the website (front end).\n\nInstallations are only affected if there are untrusted back end users who have the rights to modify HTML fields (e.g. TinyMCE).", "aliases": [ { "alias": "CVE-2021-35955" }, { "alias": "GHSA-hr3h-x6gq-rqcp" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/58741?format=api", "purl": "pkg:composer/contao/contao@4.4.56", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.4.56" }, { "url": "http://public2.vulnerablecode.io/api/packages/58742?format=api", "purl": "pkg:composer/contao/contao@4.9.18", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.9.18" }, { "url": "http://public2.vulnerablecode.io/api/packages/58743?format=api", "purl": "pkg:composer/contao/contao@4.11.7", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.11.7" }, { "url": "http://public2.vulnerablecode.io/api/packages/58653?format=api", "purl": "pkg:composer/contao/core-bundle@4.4.56", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.4.56" }, { "url": "http://public2.vulnerablecode.io/api/packages/58654?format=api", "purl": "pkg:composer/contao/core-bundle@4.9.18", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.9.18" }, { "url": "http://public2.vulnerablecode.io/api/packages/58655?format=api", "purl": "pkg:composer/contao/core-bundle@4.11.7", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.11.7" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/58738?format=api", "purl": "pkg:composer/contao/contao@4.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5kwa-7kx3-kfga" }, { "vulnerability": "VCID-6um8-6hqz-uybm" }, { "vulnerability": "VCID-82d1-8yn8-sydv" }, { "vulnerability": "VCID-98fv-kpqs-mybc" }, { "vulnerability": "VCID-ah8s-8q49-8qbw" }, { "vulnerability": "VCID-crsc-bhc9-y3f9" }, { "vulnerability": "VCID-epmj-qf23-xffd" }, { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" }, { "vulnerability": "VCID-u6sk-25yd-e7b2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/58739?format=api", "purl": "pkg:composer/contao/contao@4.5.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3fux-z15d-13g1" }, { "vulnerability": "VCID-5kwa-7kx3-kfga" }, { "vulnerability": "VCID-82d1-8yn8-sydv" }, { "vulnerability": "VCID-98fv-kpqs-mybc" }, { "vulnerability": "VCID-ah8s-8q49-8qbw" }, { "vulnerability": "VCID-azpb-eq6c-e7bw" }, { "vulnerability": "VCID-epmj-qf23-xffd" }, { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" }, { "vulnerability": "VCID-u6sk-25yd-e7b2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.5.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/58740?format=api", "purl": "pkg:composer/contao/contao@4.10.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-82d1-8yn8-sydv" }, { "vulnerability": "VCID-azpb-eq6c-e7bw" }, { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" }, { "vulnerability": "VCID-u6sk-25yd-e7b2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/contao@4.10.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/57827?format=api", "purl": "pkg:composer/contao/core-bundle@4.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-2w7m-mb7e-tqe6" }, { "vulnerability": "VCID-5kwa-7kx3-kfga" }, { "vulnerability": "VCID-6um8-6hqz-uybm" }, { "vulnerability": "VCID-82d1-8yn8-sydv" }, { "vulnerability": "VCID-98fv-kpqs-mybc" }, { "vulnerability": "VCID-ah8s-8q49-8qbw" }, { "vulnerability": "VCID-crsc-bhc9-y3f9" }, { "vulnerability": "VCID-epmj-qf23-xffd" }, { "vulnerability": "VCID-f8ny-db5g-pkhw" }, { "vulnerability": "VCID-jbcs-b2p9-myhz" }, { "vulnerability": "VCID-jzx2-et8q-7qhm" }, { "vulnerability": "VCID-nepv-9985-37g4" }, { "vulnerability": "VCID-r1h5-ag74-dbaw" }, { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" }, { "vulnerability": "VCID-u6sk-25yd-e7b2" }, { "vulnerability": "VCID-wyd5-t8at-8bba" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/57828?format=api", "purl": "pkg:composer/contao/core-bundle@4.5.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3fux-z15d-13g1" }, { "vulnerability": "VCID-5kwa-7kx3-kfga" }, { "vulnerability": "VCID-82d1-8yn8-sydv" }, { "vulnerability": "VCID-98fv-kpqs-mybc" }, { "vulnerability": "VCID-ah8s-8q49-8qbw" }, { "vulnerability": "VCID-azpb-eq6c-e7bw" }, { "vulnerability": "VCID-epmj-qf23-xffd" }, { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.5.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/58319?format=api", "purl": "pkg:composer/contao/core-bundle@4.10.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-82d1-8yn8-sydv" }, { "vulnerability": "VCID-azpb-eq6c-e7bw" }, { "vulnerability": "VCID-mt93-hcnp-13ah" }, { "vulnerability": "VCID-nepv-9985-37g4" }, { "vulnerability": "VCID-rj3d-jeyz-vye5" }, { "vulnerability": "VCID-t2u3-tgg3-cbb9" }, { "vulnerability": "VCID-u6sk-25yd-e7b2" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/contao/core-bundle@4.10.0" } ], "references": [ { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-35955", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00364", "scoring_system": "epss", "scoring_elements": "0.58724", "published_at": "2026-06-04T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-35955" }, { "reference_url": "https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.html", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://contao.org/en/news/contao-4-9-16-and-4-11-5-are-available.html" }, { "reference_url": "https://contao.org/en/security-advisories/cross-site-scripting-via-html-attributes-in-the-back-end.html", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://contao.org/en/security-advisories/cross-site-scripting-via-html-attributes-in-the-back-end.html" }, { "reference_url": "https://github.com/contao/contao", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/contao/contao" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35955", "reference_id": "CVE-2021-35955", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35955" }, { "reference_url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-35955.yaml", "reference_id": "CVE-2021-35955.YAML", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/contao/CVE-2021-35955.yaml" }, { "reference_url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-35955.yaml", "reference_id": "CVE-2021-35955.YAML", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/contao/core-bundle/CVE-2021-35955.yaml" }, { "reference_url": "https://github.com/advisories/GHSA-hr3h-x6gq-rqcp", "reference_id": "GHSA-hr3h-x6gq-rqcp", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-hr3h-x6gq-rqcp" }, { "reference_url": "https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcp", "reference_id": "GHSA-hr3h-x6gq-rqcp", "reference_type": "", "scores": [ { "value": "5.9", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L" }, { "value": "MODERATE", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/contao/contao/security/advisories/GHSA-hr3h-x6gq-rqcp" } ], "weaknesses": [ { "cwe_id": 79, "name": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "description": "The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." } ], "exploits": [], "severity_range_score": "4.0 - 6.9", "exploitability": "0.5", "weighted_severity": "6.2", "risk_score": 3.1, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-82d1-8yn8-sydv" }