CVE-2021-23342

{"id": "CVE-2021-23342", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Secondary", "source": "report@snyk.io", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}]}, "published": "2021-02-19T17:15:13.717", "references": [{"url": "http://packetstormsecurity.com/files/161495/docsify-4.11.6-Cross-Site-Scripting.html", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "http://seclists.org/fulldisclosure/2021/Feb/71", "tags": ["Mailing List", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe", "tags": ["Patch", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "https://snyk.io/vuln/SNYK-JS-DOCSIFY-1066017", "tags": ["Exploit", "Third Party Advisory"], "source": "report@snyk.io"}, {"url": "http://packetstormsecurity.com/files/161495/docsify-4.11.6-Cross-Site-Scripting.html", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://seclists.org/fulldisclosure/2021/Feb/71", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://snyk.io/vuln/SNYK-JS-DOCSIFY-1066017", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "This affects the package docsify before 4.12.0. It is possible to bypass the remediation done by CVE-2020-7680 and execute malicious JavaScript through the following methods 1) When parsing HTML from remote URLs, the HTML code on the main page is sanitized, but this sanitization is not taking place in the sidebar. 2) The isURL external check can be bypassed by inserting more \u201c////\u201d characters"}, {"lang": "es", "value": "Esto afecta al paquete docsify versiones anteriores a 4.12.0. Es posible omitir la correcci\u00f3n realizada por CVE-2020-7680 y ejecutar JavaScript malicioso por medio de los siguientes m\u00e9todos 1) Al analizar HTML desde URL remotas, el c\u00f3digo HTML en la p\u00e1gina principal es saneado, pero este saneamiento no se lleva a cabo en el barra lateral. 2) La comprobaci\u00f3n externa de isURL se puede omitir insertando m\u00e1s caracteres \"////\""}], "lastModified": "2024-11-21T05:51:32.403", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:docsifyjs:docsify:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E69E149B-25FD-4819-B489-EC99DA188A8E", "versionEndExcluding": "4.12.0"}], "operator": "OR"}]}], "sourceIdentifier": "report@snyk.io"}