{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116687", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-26T20:00:59.830Z", "datePublished": "2026-10-27T19:33:11.074Z", "dateUpdated": "2026-10-27T19:33:11.074Z"}, "containers": {"cna": {"title": "CKEditor: Cross-site scripting (XSS) in the engine package", "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": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq"}, {"name": "https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0", "tags": ["x_refsource_MISC"], "url": "https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0"}, {"name": "https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423", "tags": ["x_refsource_MISC"], "url": "https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423"}, {"name": "https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4"}, {"name": "https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1"}], "affected": [{"vendor": "ckeditor", "product": "ckeditor5", "versions": [{"version": ">= 29.0.0, < 47.7.4", "status": "affected"}, {"version": ">= 48.0.0, < 48.5.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-27T19:33:11.074Z"}, "descriptions": [{"lang": "en", "value": "CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General HTML Support is enabled and specifically configured to allow object content. Processing that content can execute attacker-controlled JavaScript in a browser context isolated from the origin of the application embedding the editor. This issue is fixed in versions 47.7.4 and 48.5.1."}], "source": {"advisory": "GHSA-v6mg-96c6-gmpq", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "ckeditor5", "vendor": "ckeditor", "versions": [{"status": "affected", "version": ">= 29.0.0, < 47.7.4"}, {"status": "affected", "version": ">= 48.0.0, < 48.5.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General HTML Support is enabled and specifically configured to allow object content. Processing that content can execute attacker-controlled JavaScript in a browser context isolated from the origin of the application embedding the editor. This issue is fixed in versions 47.7.4 and 48.5.1."}], "id": "CVE-2026-116687", "lastModified": "2026-10-27T20:17:13.890", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-27T20:17:13.890", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0"}, {"source": "security-advisories@github.com", "url": "https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423"}, {"source": "security-advisories@github.com", "url": "https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[29.0.0,47.7.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[48.0.0,48.5.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "ckeditor5", "source": "cna", "vendor": "ckeditor"}, "product": "ckeditor5", "vendor": "ckeditor"}], "created": "2026-10-27T20:30:08.561623+00:00", "updated": "2026-10-27T20:30:08.561657+00:00", "vendors": ["ckeditor", "ckeditor$PRODUCT$ckeditor5"]}