{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-06-26T00:00:00", "descriptions": [{"lang": "en", "value": "WordPress through 4.9.6 allows Author users to execute arbitrary code by leveraging directory traversal in the wp-admin/post.php thumb parameter, which is passed to the PHP unlink function and can delete the wp-config.php file. This is related to missing filename validation in the wp-includes/post.php wp_delete_attachment function. The attacker must have capabilities for files and posts that are normally available only to the Author, Editor, and Administrator roles. 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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*", "matchCriteriaId": "FCD1A953-9FC5-4AB3-8F74-841B169875A8", "versionEndExcluding": "4.9.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "WordPress through 4.9.6 allows Author users to execute arbitrary code by leveraging directory traversal in the wp-admin/post.php thumb parameter, which is passed to the PHP unlink function and can delete the wp-config.php file. This is related to missing filename validation in the wp-includes/post.php wp_delete_attachment function. The attacker must have capabilities for files and posts that are normally available only to the Author, Editor, and Administrator roles. The attack methodology is to delete wp-config.php and then launch a new installation process to increase the attacker's privileges."}, {"lang": "es", "value": "WordPress hasta la versi\u00f3n 4.9.6 permite que los usuarios Author ejecuten c\u00f3digo arbitrario aprovech\u00e1ndose de un salto de directorio en el par\u00e1metro thumb en wp-admin/post.php que se pasa a la funci\u00f3n unlink en PHP y puede borrar el archivo wp-config.php. Esto est\u00e1 relacionado con la ausencia de validaci\u00f3n de nombres de archivo en la funci\u00f3n wp_delete_attachment en wp-includes/post.php. El atacante debe tener capacidades para archivos y publicaciones que normalmente est\u00e1n disponibles solo para los roles Author, Editor y Administrator. La metodolog\u00eda de ataque es borrar wp-config.php y luego ejecutar un proceso de instalaci\u00f3n nuevo para incrementar los privilegios del atacante."}], "id": "CVE-2018-12895", "lastModified": "2021-11-05T18:42:39.403", "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": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-06-26T20:29:00.273", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/164633/WordPress-4.9.6-Arbitrary-File-Deletion.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104569"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://blog.ripstech.com/2018/wordpress-file-delete-to-code-execution/"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00046.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://wpvulndb.com/vulnerabilities/9100"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2018/dsa-4250"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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