[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fI4v8Y7Mi1DP3_5ZmT6xw1NzXqPEO7DLAc2ZE4zg_Y8E":3,"g5a-risk:CVE-2021-42342":116},{"success":4,"data":5,"meta":114},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":39,"epssPercentile":27,"epssTimeSeries":40,"severity":41,"affectedProducts":42,"affectedProductsCount":48,"references":49,"referencesCount":48,"weaknesses":55,"weaknessesCount":48,"isActivelyExploited":64,"cisaInfo":27,"otxData":27,"relatedBlogPosts":65,"seoMetadata":66,"configurations":91,"relatedVendorCves":105,"notableEvents":106},"CVE-2021-42342","What is CVE-2021-42342?","An issue was discovered in GoAhead 4.x and 5.x before 5.1.5. In the file upload filter, user form variables can be passed to CGI scripts without being prefixed with the CGI prefix. This permits tunneling untrusted environment variables into vulnerable CGI scripts.","An issue was discovered in GoAhead 4.x and 5.x before 5.1.5. In the file upload filter, user form variables can be passed to CGI scripts without being prefix...","2021-10-14T06:15:07.037","2021-10-20T17:35:15.837",9.8,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:H\u002FI:H\u002FA:H",{"CVSSMetricV31":15,"CVSSMetricV30":27,"CVSSMetricV2":30,"CVSSMetricV40":27},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":28,"ImpactScore":29},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":25,"AvailabilityImpact":25,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":25,"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","CRITICAL",null,3.9,5.9,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":25,"ExploitabilityScore":37,"ImpactScore":38,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":35,"IntegrityImpact":35,"AvailabilityImpact":35,"BaseScore":36,"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:N\u002FC:P\u002FI:P\u002FA:P","PARTIAL",7.5,10,6.4,0.5946,[39,39,39,39,39,39,39],"Critical",[43],{"vendor":44,"product":45,"version":46,"criteria":47,"vulnerable":4},"embedthis","goahead","*","cpe:2.3:a:embedthis:goahead:*:*:*:*:*:*:*:*",1,[50],{"url":51,"source":52,"tags":53},"https:\u002F\u002Fgithub.com\u002Fembedthis\u002Fgoahead\u002Fissues\u002F305","GitHub",[54],"Third Party Advisory",[56],{"id":57,"name":58,"description":59,"extendedDescription":60,"status":61,"abstraction":62,"structure":63},"CWE-434","Unrestricted Upload of File with Dangerous Type","The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.","","Draft","Base","Simple",false,[],{"title":67,"metaDescription":68,"keywords":69,"canonicalUrl":70,"structuredData":71},"What is CVE-2021-42342? 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An issue was discover...","CVE-2021-42342, CVE-2021-42342 vulnerability, CVE-2021-42342 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2021, CVSS score, exploit, patch, remediation, embedthis security, goahead vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2021-42342",{"@context":72,"@type":73,"headline":67,"description":68,"datePublished":10,"dateModified":11,"author":74,"publisher":78,"about":82,"mainEntityOfPage":86,"articleSection":89,"keywords":90},"https:\u002F\u002Fschema.org","TechArticle",{"@type":75,"name":76,"url":77},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":75,"name":76,"url":77,"logo":79},{"@type":80,"url":81},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":83,"name":6,"description":84,"additionalType":85},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":87,"@id":88},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-42342","Cybersecurity","CVE-2021-42342, CVE-2021-42342 vulnerability, CVE-2021-42342 security, critical severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[92],{"Operator":27,"Negate":27,"Nodes":93},[94],{"Operator":95,"Negate":27,"CPEMatch":96},"OR",[97,101],{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":98,"VersionStartExcluding":27,"VersionStartIncluding":99,"VersionEndExcluding":27,"VersionEndIncluding":100},"3D614097-1270-46F0-939B-6F2D5757FF50","4.0.0","4.1.3",{"Vulnerable":4,"Criteria":47,"MatchCriteriaID":102,"VersionStartExcluding":27,"VersionStartIncluding":103,"VersionEndExcluding":104,"VersionEndIncluding":27},"4A881D37-6C28-42A3-AD4C-F4911820911B","5.0.0","5.1.5",[],[107],{"id":108,"eventType":109,"eventTime":110,"details":111,"label":112,"color":113},"f08ae7a0-0ebe-41fc-b20d-c0b3a4862b46","LOW_EPSS_DELTA","2026-06-16T04:05:33.841068+00:00","Daily EPSS score decreased by 0.181 on 2023-12-30","EPSS Score Decreased","green",{"lastModified":11,"cacheTime":115,"version":33},1792255694474,{"score":117,"band":118,"action":119,"scoredAt":120},59,"Medium","Plan remediation","2026-10-16T06:52:16.020808+00:00"]