{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-115754", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-23T13:16:42.305Z", "datePublished": "2026-10-23T13:20:43.932Z", "dateUpdated": "2026-10-23T13:20:43.932Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-23T13:20:43.932Z"}, "datePublic": "2026-10-22T21:28:21.000Z", "title": "serialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function body", "descriptions": [{"lang": "en", "value": "serialize-javascript from 7.0.1 before 7.1.3 contains a cross-site scripting vulnerability that allows attackers to break out of HTML script elements by ending serialized function source text with an unescaped </script. Attackers controlling a function's source via a spoofed toString() can combine surrounding output delimiters and later values to inject live markup such as img onerror handlers."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "affected": [{"vendor": "yahoo", "product": "serialize-javascript", "defaultStatus": "unaffected", "versions": [{"version": "7.0.1", "lessThan": "7.1.3", "status": "affected", "versionType": "semver"}], "packageURL": "pkg:npm/serialize-javascript", "repo": "https://github.com/yahoo/serialize-javascript"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:yahoo:serialize_javascript:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0.1", "versionEndExcluding": "7.1.3"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 2.3, "baseSeverity": "LOW"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 4.7, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/yahoo/serialize-javascript/security/advisories/GHSA-m5mm-p8h7-m29v", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-m5mm-p8h7-m29v)"}, {"url": "https://github.com/yahoo/serialize-javascript/pull/235", "tags": ["patch", "issue-tracking"]}, {"url": "https://github.com/yahoo/serialize-javascript/commit/2864b3c6260a3bfd52d2db3e70d1a079de108a61", "tags": ["patch"]}, {"url": "https://github.com/yahoo/serialize-javascript/releases/tag/v7.1.3", "tags": ["release-notes"], "name": "serialize-javascript v7.1.3 Release Notes"}, {"name": "VulnCheck Advisory: serialize-javascript 7.0.1 before 7.1.3 XSS via unescaped </script in function body", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/serialize-javascript-7.0.1-before-7.1.3-xss-via-unescaped-script-in-function-body"}], "credits": [{"lang": "en", "value": "Zachariah Mithani (AploSec)", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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