CVE-2021-29447

{"containers": {"cna": {"affected": [{"product": "wordpress-develop", "vendor": "WordPress", "versions": [{"status": "affected", "version": ">= 5.6.0, < 5.7.1"}]}], "descriptions": [{"lang": "en", "value": "Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-611", "description": "{\"CWE-611\":\"Improper Restriction of XML External Entity Reference\"}", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-09-13T18:24:07.000Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh"}, {"tags": ["x_refsource_MISC"], "url": "https://wordpress.org/news/category/security/"}, {"name": "[debian-lts-announce] 20210421 [SECURITY] [DLA 2630-1] wordpress security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html"}, {"name": "DSA-4896", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "https://www.debian.org/security/2021/dsa-4896"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/"}], "source": {"advisory": "GHSA-rv47-pc52-qrhh", "discovery": "UNKNOWN"}, "title": "WordPress Authenticated XXE attack when installation is running PHP 8", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security-advisories@github.com", "ID": "CVE-2021-29447", "STATE": "PUBLIC", "TITLE": "WordPress Authenticated XXE attack when installation is running PHP 8"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "wordpress-develop", "version": {"version_data": [{"version_value": ">= 5.6.0, < 5.7.1"}]}}]}, "vendor_name": "WordPress"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled."}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "{\"CWE-611\":\"Improper Restriction of XML External Entity Reference\"}"}]}]}, "references": {"reference_data": [{"name": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh", "refsource": "CONFIRM", "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh"}, {"name": "https://wordpress.org/news/category/security/", "refsource": "MISC", "url": "https://wordpress.org/news/category/security/"}, {"name": "[debian-lts-announce] 20210421 [SECURITY] [DLA 2630-1] wordpress security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html"}, {"name": "DSA-4896", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-4896"}, {"name": "http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html"}, {"name": "http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html"}, {"name": "https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/", "refsource": "MISC", "url": "https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/"}]}, "source": {"advisory": "GHSA-rv47-pc52-qrhh", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T22:02:51.924Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://wordpress.org/news/category/security/"}, {"name": "[debian-lts-announce] 20210421 [SECURITY] [DLA 2630-1] wordpress security update", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html"}, {"name": "DSA-4896", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "https://www.debian.org/security/2021/dsa-4896"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-29447", "datePublished": "2021-04-15T21:10:12.000Z", "dateReserved": "2021-03-30T00:00:00.000Z", "dateUpdated": "2024-08-03T22:02:51.924Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "wordpress-develop", "vendor": "WordPress", "versions": [{"status": "affected", "version": ">= 5.6.0, < 5.7.1"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*", "matchCriteriaId": "699CC791-3D2B-4A19-80F1-5D98FA26809E", "versionEndExcluding": "5.7.1", "versionStartIncluding": "5.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Wordpress is an open source CMS. A user with the ability to upload files (like an Author) can exploit an XML parsing issue in the Media Library leading to XXE attacks. This requires WordPress installation to be using PHP 8. Access to internal files is possible in a successful XXE attack. This has been patched in WordPress version 5.7.1, along with the older affected versions via a minor release. We strongly recommend you keep auto-updates enabled."}, {"lang": "es", "value": "Wordpress es un CMS de c\u00f3digo abierto.&#xa0;Un usuario con la capacidad de cargar archivos (como un Autor) puede explotar un problema de an\u00e1lisis de XML en Media Library conllevando a ataques de tipo XXE.&#xa0;Esto requiere que la instalaci\u00f3n de WordPress utilice PHP versi\u00f3n 8. El acceso a archivos internos es posible en un ataque de tipo XXE con \u00e9xito.&#xa0;Esto ha sido parcheado en versi\u00f3n WordPress versi\u00f3n 5.7.1, junto con las versiones anteriores afectadas por medio de una versi\u00f3n menor. Se recomienda encarecidamente que mantenga habilitadas las actualizaciones autom\u00e1ticas"}], "id": "CVE-2021-29447", "lastModified": "2026-06-17T03:47:39.597", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 4.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-04-15T21:15:17.723", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh"}, {"source": "security-advisories@github.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html"}, {"source": "security-advisories@github.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://wordpress.org/news/category/security/"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-4896"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/163148/XML-External-Entity-Via-MP3-File-Upload-On-WordPress.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "http://packetstormsecurity.com/files/164198/WordPress-5.7-Media-Library-XML-Injection.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://blog.sonarsource.com/wordpress-xxe-security-vulnerability/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-rv47-pc52-qrhh"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2021/04/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://wordpress.org/news/category/security/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2021/dsa-4896"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-611"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-611"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}