Discourse vulnerable to stored Cross-site Scripting via Katex in discourse-math plugin_CVE-2025-67723

{
    "lastseen": "",
    "description": "Discourse is an open source discussion platform. Versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 have a content-security-policy-mitigated cross-site scriptinv vulnerability on the Discourse Math plugin when using its KaTeX variant. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. As a workaround, the Discourse Math plugin can be disabled, or the Mathjax provider can be used instead of KaTeX.",
    "published": "2026-01-28T18:21:35.379Z",
    "modified": "2026-01-28T18:21:35.379Z",
    "type": "cve",
    "title": "Discourse vulnerable to stored Cross-site Scripting via Katex in discourse-math plugin",
    "source": "GitHub_M",
    "references": "https://github.com/discourse/discourse/security/advisories/GHSA-955h-m28g-5379",
    "id": "CVE-2025-67723",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "discourse discourse < 3.5.4\ndiscourse discourse >= 2025.11.0-latest, < 2025.11.2\ndiscourse discourse >= 2025.12.0-latest, 2025.12.1\ndiscourse discourse >= 2026.1.0-latest, < 2026.1.0",
    "sourceHref": "",
    "cvss": {
        "score": 4.6,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "discourse",
    "version": "< 3.5.4",
    "vendor": "discourse",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}