{"containers": {"cna": {"affected": [{"product": "markdown-it-highlightjs", "vendor": "n/a", "versions": [{"lessThan": "3.3.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "ooooooo_q"}], "datePublic": "2020-11-16T00:00:00", "descriptions": [{"lang": "en", "value": "This affects the package markdown-it-highlightjs before 3.3.1. It is possible insert malicious JavaScript as a value of lang in the markdown-it-highlightjs Inline code highlighting feature. const markdownItHighlightjs = require(\"markdown-it-highlightjs\"); const md = require('markdown-it'); const reuslt_xss = md() .use(markdownItHighlightjs, { inline: true }) .render('console.log(42){.\">js}'); console.log(reuslt_xss);"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "exploitCodeMaturity": "PROOF_OF_CONCEPT", "integrityImpact": "NONE", "privilegesRequired": "NONE", "remediationLevel": "OFFICIAL_FIX", "reportConfidence": "CONFIRMED", "scope": "UNCHANGED", "temporalScore": 5.9, "temporalSeverity": "MEDIUM", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Cross-site Scripting (XSS)", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-11-16T12:00:24", "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730", "shortName": "snyk"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://snyk.io/vuln/SNYK-JS-MARKDOWNITHIGHLIGHTJS-1040461"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/valeriangalliat/markdown-it-highlightjs/pull/14"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/valeriangalliat/markdown-it-highlightjs/blob/v3.3.0/index.js%23L52"}], "title": "Cross-site Scripting (XSS)", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "report@snyk.io", "DATE_PUBLIC": "2020-11-16T11:58:00.563282Z", "ID": "CVE-2020-7773", "STATE": "PUBLIC", "TITLE": "Cross-site Scripting (XSS)"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "markdown-it-highlightjs", "version": {"version_data": [{"version_affected": "<", "version_value": "3.3.1"}]}}]}, "vendor_name": "n/a"}]}}, "credit": [{"lang": "eng", "value": "ooooooo_q"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "This affects the package markdown-it-highlightjs before 3.3.1. 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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:markdown-it-highlightjs_project:markdown-it-highlightjs:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "0E6E72E4-63FE-41AA-BBE5-19C53DD52AD1", "versionEndExcluding": "3.3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "This affects the package markdown-it-highlightjs before 3.3.1. It is possible insert malicious JavaScript as a value of lang in the markdown-it-highlightjs Inline code highlighting feature. const markdownItHighlightjs = require(\"markdown-it-highlightjs\"); const md = require('markdown-it'); const reuslt_xss = md() .use(markdownItHighlightjs, { inline: true }) .render('console.log(42){.\">js}'); console.log(reuslt_xss);"}, {"lang": "es", "value": "Esto afecta al paquete markdown-it-highlightjs versiones anteriores a 3.3.1.&#xa0;Es posible insertar JavaScript malicioso como valor de lang en la funcionalidad de resaltado de c\u00f3digo en l\u00ednea markdown-it-highlightjs.&#xa0;const markdownItHighlightjs = require(\"markdown-it-highlightjs\");&#xa0;const md = require(\"markdown-it\");&#xa0;const reuslt_xss = md() .use(markdownItHighlightjs, {inline: true}) .render(\"console.log(42){.\")js}'); console.log(reuslt_xss)"}], "id": "CVE-2020-7773", "lastModified": "2024-11-21T05:37:46.580", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "report@snyk.io", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-11-16T12:15:14.463", "references": [{"source": "report@snyk.io", "tags": ["Broken Link"], "url": "https://github.com/valeriangalliat/markdown-it-highlightjs/blob/v3.3.0/index.js%23L52"}, {"source": "report@snyk.io", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/valeriangalliat/markdown-it-highlightjs/pull/14"}, {"source": "report@snyk.io", "tags": ["Mitigation", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-MARKDOWNITHIGHLIGHTJS-1040461"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://github.com/valeriangalliat/markdown-it-highlightjs/blob/v3.3.0/index.js%23L52"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/valeriangalliat/markdown-it-highlightjs/pull/14"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mitigation", "Third Party Advisory"], "url": "https://snyk.io/vuln/SNYK-JS-MARKDOWNITHIGHLIGHTJS-1040461"}], "sourceIdentifier": "report@snyk.io", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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