{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-107303", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-07T15:53:23.587Z", "datePublished": "2026-10-08T17:23:04.706Z", "dateUpdated": "2026-10-08T17:23:04.706Z"}, "containers": {"cna": {"title": "JHipster: Generated Applications Allow Stored XSS via Unrestricted Blob ContentType Opened as Same-Origin Blob", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/jhipster/generator-jhipster/security/advisories/GHSA-9ffp-22j7-56r2", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/jhipster/generator-jhipster/security/advisories/GHSA-9ffp-22j7-56r2"}, {"name": "https://github.com/jhipster/generator-jhipster/pull/34807", "tags": ["x_refsource_MISC"], "url": "https://github.com/jhipster/generator-jhipster/pull/34807"}, {"name": "https://github.com/jhipster/generator-jhipster/commit/efe95edd4dedc3379735094936439410a51ce3d9", "tags": ["x_refsource_MISC"], "url": "https://github.com/jhipster/generator-jhipster/commit/efe95edd4dedc3379735094936439410a51ce3d9"}, {"name": "https://github.com/jhipster/generator-jhipster/releases/tag/v9.4.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/jhipster/generator-jhipster/releases/tag/v9.4.0"}], "affected": [{"vendor": "jhipster", "product": "generator-jhipster", "versions": [{"version": "< 9.4.0", "status": "affected"}]}, {"vendor": "jhipster", "product": "react-jhipster", "versions": [{"version": "< 1.1.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-08T17:23:04.706Z"}, "descriptions": [{"lang": "en", "value": "JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures. Prior to generator-jhipster 9.4.0 and react-jhipster 1.1.0, generated applications can persist attacker-controlled Blob data and companion ContentType values, return them through generated REST endpoints, and pass them to the generated openFile helper in generators/client/generators/common/templates/src/main/webapp/app/shared/jhipster/data-utils.ts.ejs. The helper uses the returned ContentType as the browser Blob MIME type and opens an object URL, so a normal authenticated user with write access to a Blob-bearing entity can store active HTML or SVG content that may execute under the application origin when a privileged user opens it. Exploitability depends on the generated application's content security policy and target-browser Blob behavior. This issue is fixed in generator-jhipster 9.4.0 and react-jhipster 1.1.0."}], "source": {"advisory": "GHSA-9ffp-22j7-56r2", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "generator-jhipster", "vendor": "jhipster", "versions": [{"status": "affected", "version": "< 9.4.0"}]}, {"product": "react-jhipster", "vendor": "jhipster", "versions": [{"status": "affected", "version": "< 1.1.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures. Prior to generator-jhipster 9.4.0 and react-jhipster 1.1.0, generated applications can persist attacker-controlled Blob data and companion ContentType values, return them through generated REST endpoints, and pass them to the generated openFile helper in generators/client/generators/common/templates/src/main/webapp/app/shared/jhipster/data-utils.ts.ejs. The helper uses the returned ContentType as the browser Blob MIME type and opens an object URL, so a normal authenticated user with write access to a Blob-bearing entity can store active HTML or SVG content that may execute under the application origin when a privileged user opens it. Exploitability depends on the generated application's content security policy and target-browser Blob behavior. This issue is fixed in generator-jhipster 9.4.0 and react-jhipster 1.1.0."}], "id": "CVE-2026-107303", "lastModified": "2026-10-08T18:17:19.277", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-08T18:17:19.277", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/jhipster/generator-jhipster/commit/efe95edd4dedc3379735094936439410a51ce3d9"}, {"source": "security-advisories@github.com", "url": "https://github.com/jhipster/generator-jhipster/pull/34807"}, {"source": "security-advisories@github.com", "url": "https://github.com/jhipster/generator-jhipster/releases/tag/v9.4.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/jhipster/generator-jhipster/security/advisories/GHSA-9ffp-22j7-56r2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-10-08T19:00:07.490905+00:00", "updated": "2026-10-08T19:00:07.490911+00:00", "vendors": []}