CVE-2020-26260

{"containers": {"cna": {"affected": [{"product": "BookStack", "vendor": "BookStackApp", "versions": [{"status": "affected", "version": ">= v0.7, < v0.30.5"}]}], "descriptions": [{"lang": "en", "value": "BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-74", "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-12-09T16:20:14.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr"}, {"tags": ["x_refsource_MISC"], "url": "https://bookstackapp.com/blog/beta-release-v0-30-5/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5"}], "source": {"advisory": "GHSA-8wfc-w2r5-x7cr", "discovery": "UNKNOWN"}, "title": "Server Side Request Forgery in BookStack", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2020-26260", "STATE": "PUBLIC", "TITLE": "Server Side Request Forgery in BookStack"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "BookStack", "version": {"version_data": [{"version_value": ">= v0.7, < v0.30.5"}]}}]}, "vendor_name": "BookStackApp"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"}]}]}, "references": {"reference_data": [{"name": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr", "refsource": "CONFIRM", "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr"}, {"name": "https://bookstackapp.com/blog/beta-release-v0-30-5/", "refsource": "MISC", "url": "https://bookstackapp.com/blog/beta-release-v0-30-5/"}, {"name": "https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5", "refsource": "MISC", "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5"}]}, "source": {"advisory": "GHSA-8wfc-w2r5-x7cr", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T15:56:04.938Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bookstackapp.com/blog/beta-release-v0-30-5/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2020-26260", "datePublished": "2020-12-09T16:20:14.000Z", "dateReserved": "2020-10-01T00:00:00.000Z", "dateUpdated": "2024-08-04T15:56:04.938Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "BookStack", "vendor": "BookStackApp", "versions": [{"status": "affected", "version": ">= v0.7, < v0.30.5"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*", "matchCriteriaId": "97847080-31E8-47BF-8E66-671D8DB7D28D", "versionEndExcluding": "0.30.5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade."}, {"lang": "es", "value": "BookStack es una plataforma para almacenar y organizar informaci\u00f3n y documentaci\u00f3n.&#xa0;En BookStack versiones anteriores a 0.30.5, un usuario con permisos para editar una p\u00e1gina pod\u00eda configurar determinadas URL de imagen para manipular la funcionalidad en el sistema de exportaci\u00f3n, lo que podr\u00eda permitir realizar peticiones del lado del servidor y/o tener acceso a un alcance m\u00e1s amplio de archivos dentro las ubicaciones de almacenamiento de archivos de BookStack.&#xa0;El problema se abord\u00f3 en BookStack versi\u00f3n v0.30.5.&#xa0;Como soluci\u00f3n alternativa, los permisos de edici\u00f3n de p\u00e1gina podr\u00edan estar limitada solo a aquellos que son confiables hasta que pueda actualizar"}], "id": "CVE-2020-26260", "lastModified": "2026-06-17T03:07:56.707", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 5.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-09T17:15:30.477", "references": [{"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://bookstackapp.com/blog/beta-release-v0-30-5/"}, {"source": "security-advisories@github.com", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://bookstackapp.com/blog/beta-release-v0-30-5/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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