CVE-2021-42362

{"containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "WordPress Popular Posts", "vendor": "WordPress Popular Posts", "versions": [{"lessThanOrEqual": "5.3.2", "status": "affected", "version": "0.0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Original Researcher: Jerome Bruandet, NinTechNet Exploit Author: Simone Cristofaro"}], "datePublic": "2021-11-12T05:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The WordPress Popular Posts WordPress plugin is vulnerable to arbitrary file uploads due to insufficient input file type validation found in the ~/src/Image.php file which makes it possible for attackers with contributor level access and above to upload malicious files that can be used to obtain remote code execution, in versions up to and including 5.3.2.</p>"}], "value": "The WordPress Popular Posts 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"b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2023-11-21T23:31:19.797Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/"}, {"tags": ["x_refsource_MISC"], "url": "https://www.wordfence.com/vulnerability-advisories/#CVE-2021-42362"}, {"tags": ["x_refsource_MISC"], "url": "https://plugins.trac.wordpress.org/changeset/2542638/wordpress-popular-posts/trunk/src/Image.php"}, {"tags": ["x_refsource_MISC"], "url": "https://wpscan.com/vulnerability/bd4f157c-a3d7-4535-a587-0102ba4e3009"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.html"}, {"tags": ["patch"], "url": "https://github.com/cabrerahector/wordpress-popular-posts/commit/d9b274cf6812eb446e4103cb18f69897ec6fe601"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Update to version 5.3.3 or newer. </p>"}], "value": "Update to version 5.3.3 or newer."}], "source": {"discovery": "UNKNOWN"}, "title": "WordPress Popular Posts <= 5.3.2 Authenticated Arbitrary File Upload", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"AKA": "Wordfence", "ASSIGNER": "security@wordfence.com", "DATE_PUBLIC": "2021-11-12T13:26:00.000Z", "ID": "CVE-2021-42362", "STATE": "PUBLIC", "TITLE": "WordPress Popular Posts <= 5.3.2 Authenticated Arbitrary File Upload"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "WordPress Popular Posts", "version": {"version_data": [{"version_affected": "<=", "version_name": "5.3.2", "version_value": "5.3.2"}]}}]}, "vendor_name": "WordPress Popular Posts"}]}}, "credit": [{"lang": "eng", "value": "Original Researcher: Jerome Bruandet, NinTechNet Exploit Author: Simone Cristofaro"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The WordPress Popular Posts WordPress plugin is vulnerable to arbitrary file uploads due to insufficient input file type validation found in the ~/src/Image.php file which makes it possible for attackers with contributor level access and above to upload malicious files that can be used to obtain remote code execution, in versions up to and including 5.3.2."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": "8.8", "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-434 Unrestricted Upload of File with Dangerous Type"}]}]}, "references": 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"http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.html"}]}, "solution": [{"lang": "en", "value": "Update to version 5.3.3 or newer."}], "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T03:30:38.647Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://blog.nintechnet.com/improper-input-validation-fixed-in-wordpress-popular-posts-plugin/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.wordfence.com/vulnerability-advisories/#CVE-2021-42362"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://plugins.trac.wordpress.org/changeset/2542638/wordpress-popular-posts/trunk/src/Image.php"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://wpscan.com/vulnerability/bd4f157c-a3d7-4535-a587-0102ba4e3009"}, {"tags": 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "WordPress Popular Posts", "vendor": "WordPress Popular Posts", "versions": [{"lessThanOrEqual": "5.3.2", "status": "affected", "version": "0.0", "versionType": "custom"}]}], "source": "security@wordfence.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wordpress_popular_posts_project:wordpress_popular_posts:*:*:*:*:*:wordpress:*:*", "matchCriteriaId": "FEC317D4-B717-4E9E-B3E0-0E719E80E25B", "versionEndIncluding": "5.3.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The WordPress Popular Posts WordPress plugin is vulnerable to arbitrary file uploads due to insufficient input file type validation found in the ~/src/Image.php file which makes it possible for attackers with contributor level access and above to upload malicious files that can be used to obtain remote code execution, in versions up to and including 5.3.2."}, {"lang": "es", "value": "El plugin Popular Posts de WordPress es vulnerable a una carga de archivos arbitrarios debido a la insuficiente comprobaci\u00f3n del tipo de archivo de entrada encontrada en el archivo ~/src/Image.php que hace posible que atacantes con acceso de nivel de colaborador y superior carguen archivos maliciosos que pueden ser usados para obtener una ejecuci\u00f3n de c\u00f3digo remota, en versiones hasta la 5.3.2 incluy\u00e9ndola"}], "id": "CVE-2021-42362", "lastModified": "2026-06-17T04:09:41.593", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 6.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@wordfence.com", "type": "Secondary"}]}, "published": "2021-11-17T18:15:08.297", "references": [{"source": "security@wordfence.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/165376/WordPress-Popular-Posts-5.3.2-Remote-Code-Execution.html"}, {"source": "security@wordfence.com", "tags": ["Exploit", "Third Party Advisory"], "url": 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[{"lang": "en", "value": "CWE-434"}], "source": "security@wordfence.com", "type": "Secondary"}]}

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