[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f10RrPotwxHu7XxOJuyUnn_2LoB1iC51iMAtQzgUYurc":3,"g5a-risk:CVE-2021-21311":164},{"success":4,"data":5,"meta":162},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":46,"epssPercentile":26,"epssTimeSeries":47,"severity":48,"affectedProducts":49,"affectedProductsCount":59,"references":60,"referencesCount":99,"weaknesses":100,"weaknessesCount":109,"isActivelyExploited":4,"cisaInfo":110,"otxData":26,"relatedBlogPosts":111,"seoMetadata":112,"configurations":137,"relatedVendorCves":153,"notableEvents":154},"CVE-2021-21311","What is CVE-2021-21311?","Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected. This is fixed in version 4.7.9.","Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vul...","2021-02-11T21:15:13.82","2025-10-24T14:48:35.89",7.2,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:C\u002FC:L\u002FI:L\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":33,"CVSSMetricV2":34,"CVSSMetricV40":26},[16,29],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"security-advisories@github.com","Secondary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},"3.1","NETWORK","LOW","NONE","CHANGED","HIGH",null,3.9,2.7,{"Source":30,"Type":31,"CVSSData":32,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":22,"IntegrityImpact":22,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"ModifiedAttackVector":26,"ModifiedAttackComplexity":26,"ModifiedPrivilegesRequired":26,"ModifiedUserInteraction":26,"ModifiedScope":26,"ModifiedConfidentialityImpact":26,"ModifiedIntegrityImpact":26,"ModifiedAvailabilityImpact":26,"EnvironmentalScore":26,"EnvironmentalSeverity":26},[],[35],{"Source":30,"Type":31,"CVSSData":36,"BaseSeverity":42,"ExploitabilityScore":43,"ImpactScore":44,"ACInsufInfo":45,"ObtainAllPrivilege":45,"ObtainUserPrivilege":45,"ObtainOtherPrivilege":45,"UserInteractionRequired":45},{"Version":37,"VectorString":38,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":39,"IntegrityImpact":39,"AvailabilityImpact":23,"BaseScore":40,"BaseSeverity":41,"Exploitability":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"CollateralDamagePotential":26,"TargetDistribution":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":26,"EnvironmentalScore":26},"2.0","AV:N\u002FAC:L\u002FAu:N\u002FC:P\u002FI:P\u002FA:N","PARTIAL",6.4,"","MEDIUM",10,4.9,false,0.98464,[46,46,46,46,46,46,46],"High",[50,54],{"vendor":51,"product":51,"version":52,"criteria":53,"vulnerable":4},"adminer","*","cpe:2.3:a:adminer:adminer:*:*:*:*:*:*:*:*",{"vendor":55,"product":56,"version":57,"criteria":58,"vulnerable":4},"debian","debian_linux","9.0","cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",2,[61,66,71,74,79,84,86,88,90,92,94],{"url":62,"source":63,"tags":64},"https:\u002F\u002Fgithub.com\u002Fvrana\u002Fadminer\u002Fcommit\u002Fccd2374b0b12bd547417bf0dacdf153826c83351","GitHub",[65],"Patch",{"url":67,"source":63,"tags":68},"https:\u002F\u002Fgithub.com\u002Fvrana\u002Fadminer\u002Ffiles\u002F5957311\u002FAdminer.SSRF.pdf",[69,70],"Exploit","Third Party Advisory",{"url":72,"source":63,"tags":73},"https:\u002F\u002Fgithub.com\u002Fvrana\u002Fadminer\u002Fsecurity\u002Fadvisories\u002FGHSA-x5r2-hj5c-8jx6",[65,70],{"url":75,"source":76,"tags":77},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2021\u002F03\u002Fmsg00002.html","Debian",[78,70],"Mailing List",{"url":80,"source":81,"tags":82},"https:\u002F\u002Fpackagist.org\u002Fpackages\u002Fvrana\u002Fadminer","Packagist",[83,70],"Product",{"url":62,"source":63,"tags":85},[65],{"url":67,"source":63,"tags":87},[69,70],{"url":72,"source":63,"tags":89},[65,70],{"url":75,"source":76,"tags":91},[78,70],{"url":80,"source":81,"tags":93},[83,70],{"url":95,"source":96,"tags":97},"https:\u002F\u002Fwww.cisa.gov\u002Fknown-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21311","CISA",[98],"US Government Resource",11,[101],{"id":102,"name":103,"description":104,"extendedDescription":105,"status":106,"abstraction":107,"structure":108},"CWE-918","Server-Side Request Forgery (SSRF)","The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.","By providing URLs to unexpected hosts or ports, attackers can make it appear that the server is sending the request, possibly bypassing access controls such as firewalls that prevent the attackers from accessing the URLs directly. The server can be used as a proxy to conduct port scanning of hosts in internal networks, use other URLs such as that can access documents on the system (using file:\u002F\u002F), or use other protocols such as gopher:\u002F\u002F or tftp:\u002F\u002F, which may provide greater control over the contents of requests.","Incomplete","Base","Simple",1,{"shortDescription":41,"requiredAction":41,"vulnerabilityName":41,"dateAdded":26},[],{"title":113,"metaDescription":114,"keywords":115,"canonicalUrl":116,"structuredData":117},"What is CVE-2021-21311? Vulnerability Analysis | Security Advisory | EdgeProtect","Comprehensive analysis of CVE-2021-21311, a high severity cyber security vulnerability from 2021. High exploit probability (98.5%). Adminer is an open-source...","CVE-2021-21311, CVE-2021-21311 vulnerability, CVE-2021-21311 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, adminer security, debian security, adminer vulnerability, debian_linux vulnerability, high risk vulnerability, actively exploited, exploit available","\u002Fwhat-is\u002Fcve-2021-21311",{"@context":118,"@type":119,"headline":113,"description":114,"datePublished":10,"dateModified":11,"author":120,"publisher":124,"about":128,"mainEntityOfPage":132,"articleSection":135,"keywords":136},"https:\u002F\u002Fschema.org","TechArticle",{"@type":121,"name":122,"url":123},"Organization","EdgeProtect","https:\u002F\u002Fedgeprotect.io",{"@type":121,"name":122,"url":123,"logo":125},{"@type":126,"url":127},"ImageObject","https:\u002F\u002Fedgeprotect.io\u002Fimg\u002Flogos\u002Fedgeprotect-logo-512.png",{"@type":129,"name":6,"description":130,"additionalType":131},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":133,"@id":134},"WebPage","https:\u002F\u002Fedgeprotect.io\u002Fwhat-is\u002Fcve-2021-21311","Cybersecurity","CVE-2021-21311, CVE-2021-21311 vulnerability, CVE-2021-21311 security, high severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[138,147],{"Operator":26,"Negate":26,"Nodes":139},[140],{"Operator":141,"Negate":45,"CPEMatch":142},"OR",[143],{"Vulnerable":4,"Criteria":53,"MatchCriteriaID":144,"VersionStartExcluding":26,"VersionStartIncluding":145,"VersionEndExcluding":146,"VersionEndIncluding":26},"F5E19DCC-D7A6-4325-8E91-E601C9967B8F","4.0.0","4.7.9",{"Operator":26,"Negate":26,"Nodes":148},[149],{"Operator":141,"Negate":45,"CPEMatch":150},[151],{"Vulnerable":4,"Criteria":58,"MatchCriteriaID":152,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":26,"VersionEndIncluding":26},"DEECE5FC-CACF-4496-A3E7-164736409252",[],[155],{"id":156,"eventType":157,"eventTime":158,"details":159,"label":160,"color":161},"fa1fd26a-872d-4ddd-9948-ba0bd968fe0e","NEW_CISA","2025-09-30T04:01:00.926813+00:00","CVE added to CISA Known Exploited Vulnerabilities","Added to CISA KEV","red",{"lastModified":11,"cacheTime":163,"version":37},1793203138394,{"score":165,"band":48,"action":166,"scoredAt":167},81,"Emergency patch","2026-10-28T06:50:19.66766+00:00"]