[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fX23RnJblpm83MP9dccHnvWKjmRwm78Y3qWibXXHb0mM":3,"g5a-risk:CVE-2021-29447":157},{"success":4,"data":5,"meta":155},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":47,"epssPercentile":27,"epssTimeSeries":48,"severity":49,"affectedProducts":50,"affectedProductsCount":63,"references":64,"referencesCount":97,"weaknesses":98,"weaknessesCount":107,"isActivelyExploited":108,"cisaInfo":27,"otxData":27,"relatedBlogPosts":109,"seoMetadata":110,"configurations":135,"relatedVendorCves":153,"notableEvents":154},"CVE-2021-29447","What is CVE-2021-29447?","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.","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 XX...","2021-04-15T21:15:17.723","2022-10-27T23:06:11.287",6.5,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:N\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":37,"CVSSMetricV40":27},[16,30],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":23,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"3.1","NETWORK","LOW","NONE","UNCHANGED","HIGH","MEDIUM",null,2.8,3.6,{"Source":31,"Type":32,"CVSSData":33,"ExploitabilityScore":28,"ImpactScore":36},"security-advisories@github.com","Secondary",{"Version":20,"VectorString":34,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":22,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":22,"AvailabilityImpact":23,"BaseScore":35,"BaseSeverity":25,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":23,"ModifiedAttackVector":27,"ModifiedAttackComplexity":27,"ModifiedPrivilegesRequired":27,"ModifiedUserInteraction":27,"ModifiedScope":27,"ModifiedConfidentialityImpact":27,"ModifiedIntegrityImpact":27,"ModifiedAvailabilityImpact":27,"EnvironmentalScore":27,"EnvironmentalSeverity":27},"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:L\u002FA:N",7.1,4.2,[38],{"Source":17,"Type":18,"CVSSData":39,"BaseSeverity":26,"ExploitabilityScore":45,"ImpactScore":46,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":40,"VectorString":41,"AccessVector":21,"AccessComplexity":22,"Authentication":42,"ConfidentialityImpact":43,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":44,"BaseSeverity":27,"Exploitability":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"CollateralDamagePotential":27,"TargetDistribution":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":27,"EnvironmentalScore":27},"2.0","AV:N\u002FAC:L\u002FAu:S\u002FC:P\u002FI:N\u002FA:N","SINGLE","PARTIAL",4,8,2.9,0.85719,[47,47,47,47,47,47,47],"Medium",[51,55,60],{"vendor":52,"product":52,"version":53,"criteria":54,"vulnerable":4},"wordpress","*","cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",{"vendor":56,"product":57,"version":58,"criteria":59,"vulnerable":4},"debian","debian_linux","9.0","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",{"vendor":56,"product":57,"version":61,"criteria":62,"vulnerable":4},"10.0","cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",3,[65,71,75,79,83,88,94],{"url":66,"source":67,"tags":68},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F163148\u002FXML-External-Entity-Via-MP3-File-Upload-On-WordPress.html","Packetstormsecurity",[69,70],"Third Party Advisory","VDB Entry",{"url":72,"source":67,"tags":73},"http:\u002F\u002Fpacketstormsecurity.com\u002Ffiles\u002F164198\u002FWordPress-5.7-Media-Library-XML-Injection.html",[74,69,70],"Exploit",{"url":76,"source":77,"tags":78},"https:\u002F\u002Fblog.sonarsource.com\u002Fwordpress-xxe-security-vulnerability\u002F","Sonarsource",[74,69],{"url":80,"source":81,"tags":82},"https:\u002F\u002Fgithub.com\u002FWordPress\u002Fwordpress-develop\u002Fsecurity\u002Fadvisories\u002FGHSA-rv47-pc52-qrhh","GitHub",[69],{"url":84,"source":85,"tags":86},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2021\u002F04\u002Fmsg00017.html","Debian",[87,69],"Mailing List",{"url":89,"source":90,"tags":91},"https:\u002F\u002Fwordpress.org\u002Fnews\u002Fcategory\u002Fsecurity\u002F","Wordpress",[92,93],"Release Notes","Vendor Advisory",{"url":95,"source":85,"tags":96},"https:\u002F\u002Fwww.debian.org\u002Fsecurity\u002F2021\u002Fdsa-4896",[69],7,[99],{"id":100,"name":101,"description":102,"extendedDescription":103,"status":104,"abstraction":105,"structure":106},"CWE-611","Improper Restriction of XML External Entity Reference","The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.","XML documents optionally contain a Document Type Definition (DTD), which, among other features, enables the definition of XML entities. It is possible to define an entity by providing a substitution string in the form of a URI. The XML parser can access the contents of this URI and embed these contents back into the XML document for further processing.\nBy submitting an XML file that defines an external entity with a file:\u002F\u002F URI, an attacker can cause the processing application to read the contents of a local file. For example, a URI such as \"file:\u002F\u002F\u002Fc:\u002Fwinnt\u002Fwin.ini\" designates (in Windows) the file C:\\Winnt\\win.ini, or file:\u002F\u002F\u002Fetc\u002Fpasswd designates the password file in Unix-based systems. Using URIs with other schemes such as http:\u002F\u002F, the attacker can force the application to make outgoing requests to servers that the attacker cannot reach directly, which can be used to bypass firewall restrictions or hide the source of attacks such as port scanning.\nOnce the content of the URI is read, it is fed back into the application that is processing the XML. This application may echo back the data (e.g. in an error message), thereby exposing the file contents.","Draft","Base","Simple",1,false,[],{"title":111,"metaDescription":112,"keywords":113,"canonicalUrl":114,"structuredData":115},"What is CVE-2021-29447? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-29447, a medium severity cyber security vulnerability from 2021. High exploit probability (85.7%). Wordpress is an open so...","CVE-2021-29447, CVE-2021-29447 vulnerability, CVE-2021-29447 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, wordpress security, debian security, wordpress vulnerability, debian_linux vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2021-29447",{"@context":116,"@type":117,"headline":111,"description":112,"datePublished":10,"dateModified":11,"author":118,"publisher":122,"about":126,"mainEntityOfPage":130,"articleSection":133,"keywords":134},"https:\u002F\u002Fschema.org","TechArticle",{"@type":119,"name":120,"url":121},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":119,"name":120,"url":121,"logo":123},{"@type":124,"url":125},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":127,"name":6,"description":128,"additionalType":129},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":131,"@id":132},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-29447","Cybersecurity","CVE-2021-29447, CVE-2021-29447 vulnerability, CVE-2021-29447 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[136,145],{"Operator":27,"Negate":27,"Nodes":137},[138],{"Operator":139,"Negate":27,"CPEMatch":140},"OR",[141],{"Vulnerable":4,"Criteria":54,"MatchCriteriaID":142,"VersionStartExcluding":27,"VersionStartIncluding":143,"VersionEndExcluding":144,"VersionEndIncluding":27},"699CC791-3D2B-4A19-80F1-5D98FA26809E","5.6.0","5.7.1",{"Operator":27,"Negate":27,"Nodes":146},[147],{"Operator":139,"Negate":27,"CPEMatch":148},[149,151],{"Vulnerable":4,"Criteria":59,"MatchCriteriaID":150,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"DEECE5FC-CACF-4496-A3E7-164736409252",{"Vulnerable":4,"Criteria":62,"MatchCriteriaID":152,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":27},"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",[],[],{"lastModified":11,"cacheTime":156,"version":40},1792276234090,{"score":158,"band":49,"action":159,"scoredAt":160},61,"Plan remediation","2026-10-16T06:50:54.388916+00:00"]