[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fyUHeC9O1zK83qJXgjR6IuES8saXkksj0o0Xr2gs4GFE":3,"g5a-risk:CVE-2018-21030":121},{"success":4,"data":5,"meta":119},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":38,"epssPercentile":26,"epssTimeSeries":39,"severity":40,"affectedProducts":41,"affectedProductsCount":47,"references":48,"referencesCount":63,"weaknesses":64,"weaknessesCount":80,"isActivelyExploited":81,"cisaInfo":26,"otxData":26,"relatedBlogPosts":82,"seoMetadata":83,"configurations":108,"relatedVendorCves":117,"notableEvents":118},"CVE-2018-21030","What is CVE-2018-21030?","Jupyter Notebook before 5.5.0 does not use a CSP header to treat served files as belonging to a separate origin. Thus, for example, an XSS payload can be placed in an SVG document.","Jupyter Notebook before 5.5.0 does not use a CSP header to treat served files as belonging to a separate origin. Thus, for example, an XSS payload can be pla...","2019-10-31T15:15:10.42","2020-11-19T07:15:13.923",5.3,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:N\u002FUI:N\u002FS:U\u002FC:N\u002FI:L\u002FA:N",{"CVSSMetricV31":15,"CVSSMetricV30":26,"CVSSMetricV2":29,"CVSSMetricV40":26},[16],{"Source":17,"Type":18,"CVSSData":19,"ExploitabilityScore":27,"ImpactScore":28},"nvd@nist.gov","Primary",{"Version":20,"VectorString":13,"AttackVector":21,"AttackComplexity":22,"PrivilegesRequired":23,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":23,"IntegrityImpact":22,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":25,"ExploitCodeMaturity":26,"RemediationLevel":26,"ReportConfidence":26,"TemporalScore":26,"TemporalSeverity":26,"ConfidentialityRequirement":26,"IntegrityRequirement":26,"AvailabilityRequirement":23,"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","UNCHANGED","MEDIUM",null,3.9,1.4,[30],{"Source":17,"Type":18,"CVSSData":31,"BaseSeverity":25,"ExploitabilityScore":36,"ImpactScore":37,"ACInsufInfo":26,"ObtainAllPrivilege":26,"ObtainUserPrivilege":26,"ObtainOtherPrivilege":26,"UserInteractionRequired":26},{"Version":32,"VectorString":33,"AccessVector":21,"AccessComplexity":22,"Authentication":23,"ConfidentialityImpact":23,"IntegrityImpact":34,"AvailabilityImpact":23,"BaseScore":35,"BaseSeverity":26,"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:N\u002FI:P\u002FA:N","PARTIAL",5,10,2.9,0.01443,[38,38,38,38,38,38,38],"Medium",[42],{"vendor":43,"product":44,"version":45,"criteria":46,"vulnerable":4},"jupyter","notebook","*","cpe:2.3:a:jupyter:notebook:*:*:*:*:*:*:*:*",1,[49,55,59],{"url":50,"source":51,"tags":52},"https:\u002F\u002Fgithub.com\u002Fjupyter\u002Fnotebook\u002Fpull\u002F3341","GitHub",[53,54],"Patch","Third Party Advisory",{"url":56,"source":51,"tags":57},"https:\u002F\u002Fgithub.com\u002Fjupyter\u002Fnotebook\u002Freleases\u002Ftag\u002F5.5.0",[58,54],"Release Notes",{"url":60,"source":61,"tags":62},"https:\u002F\u002Flists.debian.org\u002Fdebian-lts-announce\u002F2020\u002F11\u002Fmsg00033.html","Debian",[],3,[65,73],{"id":66,"name":67,"description":68,"extendedDescription":69,"status":70,"abstraction":71,"structure":72},"CWE-79","Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.","Cross-site scripting (XSS) vulnerabilities occur when:\nThere are three main kinds of XSS:\nOnce the malicious script is injected, the attacker can perform a variety of malicious activities. The attacker could transfer private information, such as cookies that may include session information, from the victim's machine to the attacker. The attacker could send malicious requests to a web site on behalf of the victim, which could be especially dangerous to the site if the victim has administrator privileges to manage that site. Phishing attacks could be used to emulate trusted web sites and trick the victim into entering a password, allowing the attacker to compromise the victim's account on that web site. Finally, the script could exploit a vulnerability in the web browser itself possibly taking over the victim's machine, sometimes referred to as \"drive-by hacking.\"\nIn many cases, the attack can be launched without the victim even being aware of it. Even with careful users, attackers frequently use a variety of methods to encode the malicious portion of the attack, such as URL encoding or Unicode, so the request looks less suspicious.","Stable","Base","Simple",{"id":74,"name":75,"description":76,"extendedDescription":77,"status":78,"abstraction":79,"structure":72},"CWE-863","Incorrect Authorization","The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.","Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user's privileges and any permissions or other access-control specifications that apply to the resource.\nWhen access control checks are incorrectly applied, users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.","Incomplete","Class",2,false,[],{"title":84,"metaDescription":85,"keywords":86,"canonicalUrl":87,"structuredData":88},"What is CVE-2018-21030? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2018-21030, a medium severity cyber security vulnerability from 2019. Jupyter Notebook before 5.5.0 does not use a CSP header t...","CVE-2018-21030, CVE-2018-21030 vulnerability, CVE-2018-21030 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research, vulnerability assessment, cyber threats, 2019, CVSS score, exploit, patch, remediation, jupyter security, notebook vulnerability","\u002Fwhat-is\u002Fcve-2018-21030",{"@context":89,"@type":90,"headline":84,"description":85,"datePublished":10,"dateModified":11,"author":91,"publisher":95,"about":99,"mainEntityOfPage":103,"articleSection":106,"keywords":107},"https:\u002F\u002Fschema.org","TechArticle",{"@type":92,"name":93,"url":94},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":92,"name":93,"url":94,"logo":96},{"@type":97,"url":98},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":100,"name":6,"description":101,"additionalType":102},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":104,"@id":105},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2018-21030","Cybersecurity","CVE-2018-21030, CVE-2018-21030 vulnerability, CVE-2018-21030 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[109],{"Operator":26,"Negate":26,"Nodes":110},[111],{"Operator":112,"Negate":26,"CPEMatch":113},"OR",[114],{"Vulnerable":4,"Criteria":46,"MatchCriteriaID":115,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":116,"VersionEndIncluding":26},"05F1F7F5-ADFF-48B3-B02F-85CE8F53951C","5.5.0",[],[],{"lastModified":11,"cacheTime":120,"version":32},1792276775347,{"score":122,"band":123,"action":124,"scoredAt":125},23,"Low","Monitor","2026-10-16T06:47:09.409892+00:00"]