[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fO-xAlD7AjQR0Gvuc8Z3gdm37lXWiV0N-R4pUhqlqv5E":3,"g5a-risk:CVE-2021-23253":98},{"success":4,"data":5,"meta":96},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":47,"weaknesses":54,"weaknessesCount":47,"isActivelyExploited":58,"cisaInfo":26,"otxData":26,"relatedBlogPosts":59,"seoMetadata":60,"configurations":85,"relatedVendorCves":94,"notableEvents":95},"CVE-2021-23253","What is CVE-2021-23253?","Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e.g. www.safe.opera.com.attacker.com. With the URL being left-aligned, the user will only see the front part (e.g. www.safe.opera.com…) The exact amount depends on the phone screen size but the attacker can craft a number of different domains and target different phones. Starting with version 53.1 Opera Mini displays long URLs with the top-level domain label aligned to the right of the address field which mitigates the issue.","Opera Mini for Android below 53.1 displays URL left-aligned in the address field. This allows a malicious attacker to craft a URL with a long domain name, e....","2021-01-11T16:15:15.663","2021-01-20T02:42:07.597",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",5,10,2.9,0.0076,[38,38,38,38,38,38,38],"Medium",[42],{"vendor":43,"product":44,"version":45,"criteria":46,"vulnerable":4},"opera","opera_mini","*","cpe:2.3:a:opera:opera_mini:*:*:*:*:*:android:*:*",1,[49],{"url":50,"source":51,"tags":52},"https:\u002F\u002Fsecurity.opera.com\u002Faddress-bar-spoofing-in-opera-mini-opera-security-advisories\u002F","Opera",[53],"Vendor Advisory",[55],{"id":56,"name":56,"description":57},"Unknown","NVD-CWE-Other",false,[],{"title":61,"metaDescription":62,"keywords":63,"canonicalUrl":64,"structuredData":65},"What is CVE-2021-23253? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-23253, a medium severity cyber security vulnerability from 2021. Opera Mini for Android below 53.1 displays URL left-align...","CVE-2021-23253, CVE-2021-23253 vulnerability, CVE-2021-23253 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, opera security, opera_mini vulnerability","\u002Fwhat-is\u002Fcve-2021-23253",{"@context":66,"@type":67,"headline":61,"description":62,"datePublished":10,"dateModified":11,"author":68,"publisher":72,"about":76,"mainEntityOfPage":80,"articleSection":83,"keywords":84},"https:\u002F\u002Fschema.org","TechArticle",{"@type":69,"name":70,"url":71},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":69,"name":70,"url":71,"logo":73},{"@type":74,"url":75},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":77,"name":6,"description":78,"additionalType":79},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":81,"@id":82},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-23253","Cybersecurity","CVE-2021-23253, CVE-2021-23253 vulnerability, CVE-2021-23253 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[86],{"Operator":26,"Negate":26,"Nodes":87},[88],{"Operator":89,"Negate":26,"CPEMatch":90},"OR",[91],{"Vulnerable":4,"Criteria":46,"MatchCriteriaID":92,"VersionStartExcluding":26,"VersionStartIncluding":26,"VersionEndExcluding":93,"VersionEndIncluding":26},"EA9B517F-93FF-4082-8F4E-622860AC3668","53.1",[],[],{"lastModified":11,"cacheTime":97,"version":32},1792251860280,{"score":99,"band":100,"action":101,"scoredAt":102},21,"Low","Monitor","2026-10-16T06:50:13.567587+00:00"]