CVE-2021-39357

{"id": "CVE-2021-39357", "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": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.7}, {"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}]}, "published": "2021-10-21T20:15:08.260", "references": [{"url": "https://github.com/BigTiger2020/word-press/blob/main/Leaky%20Paywall.md", "tags": ["Exploit", "Third Party Advisory"], "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset/2615195/leaky-paywall/trunk/class.php", "tags": ["Patch", "Third Party Advisory"], "source": "security@wordfence.com"}, {"url": "https://wordfence.com/vulnerability-advisories/#CVE-2021-39357", "tags": ["Third Party Advisory"], "source": "security@wordfence.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The Leaky Paywall WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via the ~/class.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 4.16.5. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled."}, {"lang": "es", "value": "El plugin Leaky Paywall de WordPress es vulnerable a un ataque de tipo Cross-Site Scripting Almacenado debido a una comprobaci\u00f3n insuficiente y saneo de entradas por medio del archivo ~/class.php, que permite a atacantes con acceso de usuario administrativo inyectar scripts web arbitrarios, en versiones hasta la 4.16.5 incluy\u00e9ndola. Esto afecta a las instalaciones multisitio en las que unfiltered_html est\u00e1 deshabilitado para los administradores, y los sitios en los que unfiltered_html est\u00e1 deshabilitado"}], "lastModified": "2021-10-25T19:56:28.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zeen101:leaky_paywall:*:*:*:*:*:wordpress:*:*", "vulnerable": true, "matchCriteriaId": "B192FC1B-F26C-487D-B008-15F497D53F49", "versionEndIncluding": "4.16.5"}], "operator": "OR"}]}], "sourceIdentifier": "security@wordfence.com"}