CVE-2021-21379

{"id": "CVE-2021-21379", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.7, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 1.3}]}, "published": "2021-03-12T18:15:12.873", "references": [{"url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-v662-xpcc-9xf6", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://jira.xwiki.org/browse/XWIKI-17759", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-281"}]}], "descriptions": [{"lang": "en", "value": "XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions of XWiki Platform, the `{{wikimacrocontent}}` executes the content with the rights of the wiki macro author instead of the caller of that wiki macro. This makes possible to inject scripts through it and they will be executed with the rights of the wiki macro (very often a user which has Programming rights). Fortunately, no such macro exists by default in XWiki Standard but one could have been created or installed with an extension. This vulnerability has been patched in versions XWiki 12.6.3, 11.10.11 and 12.8-rc-1. There is no easy workaround other than disabling the affected macros. Inserting content in a safe way or knowing what is the user who called the wiki macro is not easy."}, {"lang": "es", "value": "XWiki Platform es una plataforma wiki gen\u00e9rica que ofrece servicios de tiempo de ejecuci\u00f3n para aplicaciones creadas sobre ella. En las versiones afectadas de la plataforma XWiki, el \"{{wikimacrocontent}}\" ejecuta el contenido con los derechos de autor de la macro wiki en lugar del autor de la llamada de esa macro wiki. Esto hace posible inyectar scripts por medio de \u00e9l y se ejecutar\u00e1n con los derechos de la macro wiki (muy a menudo un usuario que presenta derechos de programaci\u00f3n). Afortunadamente, tal macro no se presenta por defecto en XWiki Standard, pero podr\u00eda haber sido creada o instalada con una extensi\u00f3n. Esta vulnerabilidad ha sido parcheada en versiones XWiki 12.6.3, 11.10.11 y 12.8-rc-1. No existe una soluci\u00f3n alternativa sencilla que no sea la de deshabilitar las macros afectadas. Insertar contenido de manera segura o saber cu\u00e1l es el usuario que llam\u00f3 a la macro wiki no es f\u00e1cil"}], "lastModified": "2021-03-22T16:26:57.457", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C3567E50-73AF-43E4-936B-BA4E992DAC20", "versionEndExcluding": "11.10.11", "versionStartIncluding": "11.4"}, {"criteria": "cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "053136E4-CF15-4B19-90DD-2C97F4A4B1EB", "versionEndExcluding": "12.6.3", "versionStartIncluding": "12.0"}, {"criteria": "cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "832C25BB-74B9-400E-8396-406BA2FC5A9F", "versionEndIncluding": "12.7.1", "versionStartIncluding": "12.7"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}