cvelist/2023/42xxx/CVE-2023-42452.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-42452",
        "ASSIGNER": "security-advisories@github.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.x branch prior to versions 4.0.10, 4.2.8, and 4.2.0-rc2, under certain conditions, attackers can abuse the translation feature to bypass the server-side HTML sanitization, allowing unescaped HTML to execute in the browser. The impact is limited thanks to Mastodon's strict Content Security Policy, blocking inline scripts, etc. However a CSP bypass or loophole could be exploited to execute malicious XSS. Furthermore, it requires user interaction, as this can only occur upon clicking the \u201cTranslate\u201d button on a malicious post. Versions 4.0.10, 4.2.8, and 4.2.0-rc2 contain a patch for this issue."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
                        "cweId": "CWE-79"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "mastodon",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "mastodon",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": ">= 4.0.0, < 4.0.10"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": ">= 4.1.0, < 4.1.8"
                                        },
                                        {
                                            "version_affected": "=",
                                            "version_value": ">= 4.2.0-beta1, < 4.2.0-rc2"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/mastodon/mastodon/security/advisories/GHSA-2693-xr3m-jhqr",
                "refsource": "MISC",
                "name": "https://github.com/mastodon/mastodon/security/advisories/GHSA-2693-xr3m-jhqr"
            },
            {
                "url": "https://github.com/mastodon/mastodon/commit/ff32475f5f4a84ebf9619e7eef5bf8b4c075d0e2",
                "refsource": "MISC",
                "name": "https://github.com/mastodon/mastodon/commit/ff32475f5f4a84ebf9619e7eef5bf8b4c075d0e2"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-2693-xr3m-jhqr",
        "discovery": "UNKNOWN"
    },
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.1,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                "version": "3.1"
            }
        ]
    }
}