{
    "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": "2026-08-18T17:47:02.477Z"
    },
    "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"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-18T17:19:19.823365Z",
                                "id": "CVE-2026-73426",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-08-18T17:47:02.477Z"
                }
            }
        ]
    }
}