{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-73426", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-12T14:32:11.796Z", "datePublished": "2026-08-18T14:24:27.542Z", "dateUpdated": "2026-08-18T14:24:27.542Z"}, "containers": {"cna": {"title": "Trix: Stored XSS vulnerability through serialized attributes", "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": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q"}, {"name": "https://github.com/basecamp/trix/pull/1282", "tags": ["x_refsource_MISC"], "url": "https://github.com/basecamp/trix/pull/1282"}, {"name": "https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4", "tags": ["x_refsource_MISC"], "url": "https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4"}, {"name": "https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc", "tags": ["x_refsource_MISC"], "url": "https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc"}, {"name": "https://github.com/basecamp/trix/releases/tag/v2.1.17", "tags": ["x_refsource_MISC"], "url": "https://github.com/basecamp/trix/releases/tag/v2.1.17"}], "affected": [{"vendor": "basecamp", "product": "trix", "versions": [{"version": "< 2.1.17", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-18T14:24:27.542Z"}, "descriptions": [{"lang": "en", "value": "Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17."}], "source": {"advisory": "GHSA-qmpg-8xg6-ph5q", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "trix", "vendor": "basecamp", "versions": [{"status": "affected", "version": "< 2.1.17"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17."}], "id": "CVE-2026-73426", "lastModified": "2026-08-18T15:17:08.043", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-18T15:17:08.043", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4"}, {"source": "security-advisories@github.com", "url": "https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc"}, {"source": "security-advisories@github.com", "url": "https://github.com/basecamp/trix/pull/1282"}, {"source": "security-advisories@github.com", "url": "https://github.com/basecamp/trix/releases/tag/v2.1.17"}, {"source": "security-advisories@github.com", "url": "https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q"}], "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": "[0,2.1.17)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "trix", "source": "cna", "vendor": "basecamp"}, "product": "trix", "vendor": "basecamp"}], "created": "2026-08-18T16:30:05.789798+00:00", "updated": "2026-08-18T16:30:05.790200+00:00", "vendors": ["basecamp", "basecamp$PRODUCT$trix"]}