[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fI0zlJhR4AH5nw69QcrYQnhbTI4d3DenKTe8g25dq62Y":3,"g5a-risk:CVE-2021-3603":138},{"success":4,"data":5,"meta":136},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":42,"epssPercentile":25,"epssTimeSeries":43,"severity":44,"affectedProducts":45,"affectedProductsCount":59,"references":60,"referencesCount":79,"weaknesses":80,"weaknessesCount":89,"isActivelyExploited":90,"cisaInfo":25,"otxData":25,"relatedBlogPosts":91,"seoMetadata":92,"configurations":117,"relatedVendorCves":134,"notableEvents":135},"CVE-2021-3603","What is CVE-2021-3603?","PHPMailer 6.4.1 and earlier contain a vulnerability that can result in untrusted code being called (if such code is injected into the host project's scope by other means). If the $patternselect parameter to validateAddress() is set to 'php' (the default, defined by PHPMailer::$validator), and the global namespace contains a function called php, it will be called in preference to the built-in validator of the same name. Mitigated in PHPMailer 6.5.0 by denying the use of simple strings as validator function names.","PHPMailer 6.4.1 and earlier contain a vulnerability that can result in untrusted code being called (if such code is injected into the host project's scope by...","2021-06-17T12:15:08.15","2023-11-07T03:38:09.233",8.1,"CVSS:3.1\u002FAV:N\u002FAC:H\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":25,"CVSSMetricV2":32,"CVSSMetricV40":25},[16,28],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":26,"ImpactScore":27},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":22,"ExploitCodeMaturity":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"TemporalSeverity":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":22,"ModifiedAttackVector":25,"ModifiedAttackComplexity":25,"ModifiedPrivilegesRequired":25,"ModifiedUserInteraction":25,"ModifiedScope":25,"ModifiedConfidentialityImpact":25,"ModifiedIntegrityImpact":25,"ModifiedAvailabilityImpact":25,"EnvironmentalScore":25,"EnvironmentalSeverity":25},"3.1","NETWORK","HIGH","NONE","UNCHANGED",null,2.2,5.9,{"Source":29,"Type":30,"CVSSData":31,"ExploitabilityScore":26,"ImpactScore":27},"c09c270a-b464-47c1-9133-acb35b22c19a","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":22,"BaseScore":12,"BaseSeverity":22,"ExploitCodeMaturity":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"TemporalSeverity":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":22,"ModifiedAttackVector":25,"ModifiedAttackComplexity":25,"ModifiedPrivilegesRequired":25,"ModifiedUserInteraction":25,"ModifiedScope":25,"ModifiedConfidentialityImpact":25,"ModifiedIntegrityImpact":25,"ModifiedAvailabilityImpact":25,"EnvironmentalScore":25,"EnvironmentalSeverity":25},[33],{"Source":17,"Type":18,"CVSSData":34,"BaseSeverity":37,"ExploitabilityScore":40,"ImpactScore":41,"ACInsufInfo":25,"ObtainAllPrivilege":25,"ObtainUserPrivilege":25,"ObtainOtherPrivilege":25,"UserInteractionRequired":25},{"Version":35,"VectorString":36,"AccessVector":21,"AccessComplexity":37,"Authentication":23,"ConfidentialityImpact":38,"IntegrityImpact":38,"AvailabilityImpact":38,"BaseScore":39,"BaseSeverity":25,"Exploitability":25,"RemediationLevel":25,"ReportConfidence":25,"TemporalScore":25,"CollateralDamagePotential":25,"TargetDistribution":25,"ConfidentialityRequirement":25,"IntegrityRequirement":25,"AvailabilityRequirement":25,"EnvironmentalScore":25},"2.0","AV:N\u002FAC:M\u002FAu:N\u002FC:P\u002FI:P\u002FA:P","MEDIUM","PARTIAL",6.8,8.6,6.4,0.0226,[42,42,42,42,42,42,42],"High",[46,51,56],{"vendor":47,"product":48,"version":49,"criteria":50,"vulnerable":4},"phpmailer_project","phpmailer","*","cpe:2.3:a:phpmailer_project:phpmailer:*:*:*:*:*:*:*:*",{"vendor":52,"product":53,"version":54,"criteria":55,"vulnerable":4},"fedoraproject","fedora","33","cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",{"vendor":52,"product":53,"version":57,"criteria":58,"vulnerable":4},"34","cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",3,[61,67,71,74],{"url":62,"source":63,"tags":64},"https:\u002F\u002Fgithub.com\u002FPHPMailer\u002FPHPMailer\u002Fcommit\u002F45f3c18dc6a2de1cb1bf49b9b249a9ee36a5f7f3","GitHub",[65,66],"Patch","Third Party Advisory",{"url":68,"source":69,"tags":70},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002F3YRMWGA4VTMXFB22KICMB7YMFZNFV3EJ\u002F","Fedoraproject",[],{"url":72,"source":69,"tags":73},"https:\u002F\u002Flists.fedoraproject.org\u002Farchives\u002Flist\u002Fpackage-announce%40lists.fedoraproject.org\u002Fmessage\u002FFJYSOFCUBS67J3TKR74SD3C454N7VTYM\u002F",[],{"url":75,"source":76,"tags":77},"https:\u002F\u002Fwww.huntr.dev\u002Fbounties\u002F1-PHPMailer\u002FPHPMailer\u002F","Huntr",[78],"Product",4,[81],{"id":82,"name":83,"description":84,"extendedDescription":85,"status":86,"abstraction":87,"structure":88},"CWE-829","Inclusion of Functionality from Untrusted Control Sphere","The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.","When including third-party functionality, such as a web widget, library, or other source of functionality, the product must effectively trust that functionality. Without sufficient protection mechanisms, the functionality could be malicious in nature (either by coming from an untrusted source, being spoofed, or being modified in transit from a trusted source). The functionality might also contain its own weaknesses, or grant access to additional functionality and state information that should be kept private to the base system, such as system state information, sensitive application data, or the DOM of a web application.\nThis might lead to many different consequences depending on the included functionality, but some examples include injection of malware, information exposure by granting excessive privileges or permissions to the untrusted functionality, DOM-based XSS vulnerabilities, stealing user's cookies, or open redirect to malware (CWE-601).","Incomplete","Base","Simple",1,false,[],{"title":93,"metaDescription":94,"keywords":95,"canonicalUrl":96,"structuredData":97},"What is CVE-2021-3603? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-3603, a high severity cyber security vulnerability from 2021. PHPMailer 6.4.1 and earlier contain a vulnerability that can...","CVE-2021-3603, CVE-2021-3603 vulnerability, CVE-2021-3603 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, phpmailer_project security, fedoraproject security, phpmailer vulnerability, fedora vulnerability","\u002Fwhat-is\u002Fcve-2021-3603",{"@context":98,"@type":99,"headline":93,"description":94,"datePublished":10,"dateModified":11,"author":100,"publisher":104,"about":108,"mainEntityOfPage":112,"articleSection":115,"keywords":116},"https:\u002F\u002Fschema.org","TechArticle",{"@type":101,"name":102,"url":103},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":101,"name":102,"url":103,"logo":105},{"@type":106,"url":107},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":109,"name":6,"description":110,"additionalType":111},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":113,"@id":114},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-3603","Cybersecurity","CVE-2021-3603, CVE-2021-3603 vulnerability, CVE-2021-3603 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[118,126],{"Operator":25,"Negate":25,"Nodes":119},[120],{"Operator":121,"Negate":25,"CPEMatch":122},"OR",[123],{"Vulnerable":4,"Criteria":50,"MatchCriteriaID":124,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":125},"437831BD-D01F-42E9-A248-2AFEE67FB017","6.4.1",{"Operator":25,"Negate":25,"Nodes":127},[128],{"Operator":121,"Negate":25,"CPEMatch":129},[130,132],{"Vulnerable":4,"Criteria":55,"MatchCriteriaID":131,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"E460AA51-FCDA-46B9-AE97-E6676AA5E194",{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":133,"VersionStartExcluding":25,"VersionStartIncluding":25,"VersionEndExcluding":25,"VersionEndIncluding":25},"A930E247-0B43-43CB-98FF-6CE7B8189835",[],[],{"lastModified":11,"cacheTime":137,"version":35},1792276768072,{"score":139,"band":140,"action":141,"scoredAt":142},48,"Medium","Plan remediation","2026-10-16T06:51:24.011975+00:00"]