{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-62204",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-07-13T16:39:22.250Z",
        "datePublished": "2026-08-22T12:26:41.933Z",
        "dateUpdated": "2026-08-22T12:26:41.933Z"
    },
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                "dateUpdated": "2026-08-22T12:26:41.933Z"
            },
            "datePublic": "2026-08-08T00:00:00.000Z",
            "title": "SiYuan before v3.7.4 Plugin Overwrite via Bazaar Install",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "SiYuan versions before v3.7.4 fail to validate that packageName matches the downloaded package content in bazaar install endpoints. Attackers with same-origin access can overwrite existing trusted plugins by supplying mismatched packageName and repoURL parameters, achieving persistence across application restarts."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "Insufficient Verification of Data Authenticity",
                            "cweId": "CWE-345",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "siyuan-note",
                    "product": "siyuan",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:golang/github.com/siyuan-note/siyuan",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "3.7.4"
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                        {
                            "version": "3.7.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        }
                    ]
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                            "operator": "OR",
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                                    "vulnerable": true,
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                                    "versionEndExcluding": "3.7.4"
                                }
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                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L",
                        "attackVector": "LOCAL",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "LOW",
                        "subConfidentialityImpact": "LOW",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "LOW",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM"
                    }
                },
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                        "userInteraction": "REQUIRED",
                        "scope": "CHANGED",
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                        "integrityImpact": "HIGH",
                        "availabilityImpact": "LOW",
                        "baseScore": 6.6,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-rpx2-p6hp-x5gj",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "name": "GitHub Security Advisory (GHSA-rpx2-p6hp-x5gj)"
                },
                {
                    "name": "VulnCheck Advisory: SiYuan before v3.7.4 Plugin Overwrite via Bazaar Install",
                    "tags": [
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                    "lang": "en",
                    "value": "alham-rizvi",
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}