CVE-2021-26035

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{"affected": [{"affectedData": [{"product": "Joomla! CMS", "vendor": "Joomla! Project", "versions": [{"status": "affected", "version": "3.0.0-3.9.27"}]}], "source": "security@joomla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:joomla:joomla\\!:*:*:*:*:*:*:*:*", "matchCriteriaId": "466BAB96-3A27-4915-BD2B-F7396950FF18", "versionEndIncluding": "3.9.27", "versionStartIncluding": "3.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Joomla! 3.0.0 through 3.9.27. Inadequate escaping in the rules field of the JForm API leads to a XSS vulnerability."}, {"lang": "es", "value": "Se ha detectado un problema en Joomla! versiones 3.0.0 hasta 3.9.27. Un escape inadecuado en el campo rules de la API JForm conduce a una vulnerabilidad de tipo XSS"}], "id": "CVE-2021-26035", "lastModified": "2026-06-17T03:42:46.557", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-07-07T11:15:08.603", "references": [{"source": "security@joomla.org", "tags": ["Vendor Advisory"], "url": "https://developer.joomla.org/security-centre/856-20210701-core-xss-in-jform-rules-field.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://developer.joomla.org/security-centre/856-20210701-core-xss-in-jform-rules-field.html"}], "sourceIdentifier": "security@joomla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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