[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmXUj9RZRZvUJS0x4OmtJoJcSp7CkmY_LG9kLVsoXuF8":3,"g5a-risk:CVE-2021-31855":110},{"success":4,"data":5,"meta":108},true,{"cveId":6,"title":7,"description":8,"shortDescription":9,"publishedDate":10,"lastModified":11,"cvssScore":12,"cvssVector":13,"cvssMetrics":14,"epssScore":40,"epssPercentile":27,"epssTimeSeries":41,"severity":42,"affectedProducts":43,"affectedProductsCount":49,"references":50,"referencesCount":60,"weaknesses":61,"weaknessesCount":49,"isActivelyExploited":70,"cisaInfo":27,"otxData":27,"relatedBlogPosts":71,"seoMetadata":72,"configurations":97,"relatedVendorCves":106,"notableEvents":107},"CVE-2021-31855","What is CVE-2021-31855?","KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. Deleting an attachment of a decrypted encrypted message stored on a remote server (e.g., an IMAP server) causes KMail to upload the decrypted content of the message to the remote server. With a crafted message, a user could be tricked into decrypting an encrypted message and then deleting an attachment attached to this message. If the attacker has access to the messages stored on the email server, then the attacker could read the decrypted content of the encrypted message. This occurs in ViewerPrivate::deleteAttachment in messageviewer\u002Fsrc\u002Fviewer\u002Fviewer_p.cpp.","KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. Deleting an attachment of a decrypted encrypted message stored on a...","2021-06-02T16:15:08.893","2023-11-08T23:15:08.08",6.5,"CVSS:3.1\u002FAV:N\u002FAC:L\u002FPR:L\u002FUI:N\u002FS:U\u002FC:H\u002FI:N\u002FA:N",{"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":22,"UserInteraction":23,"Scope":24,"ConfidentialityImpact":25,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":12,"BaseSeverity":26,"ExploitCodeMaturity":27,"RemediationLevel":27,"ReportConfidence":27,"TemporalScore":27,"TemporalSeverity":27,"ConfidentialityRequirement":27,"IntegrityRequirement":27,"AvailabilityRequirement":23,"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","MEDIUM",null,2.8,3.6,[31],{"Source":17,"Type":18,"CVSSData":32,"BaseSeverity":26,"ExploitabilityScore":38,"ImpactScore":39,"ACInsufInfo":27,"ObtainAllPrivilege":27,"ObtainUserPrivilege":27,"ObtainOtherPrivilege":27,"UserInteractionRequired":27},{"Version":33,"VectorString":34,"AccessVector":21,"AccessComplexity":22,"Authentication":35,"ConfidentialityImpact":36,"IntegrityImpact":23,"AvailabilityImpact":23,"BaseScore":37,"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:S\u002FC:P\u002FI:N\u002FA:N","SINGLE","PARTIAL",4,8,2.9,0.00609,[40,40,40,40,40,40,40],"Medium",[44],{"vendor":45,"product":46,"version":47,"criteria":48,"vulnerable":4},"kde","messagelib","*","cpe:2.3:a:kde:messagelib:*:*:*:*:*:*:*:*",1,[51,55],{"url":52,"source":53,"tags":54},"https:\u002F\u002Fgithub.com\u002FKDE\u002Fmessagelib\u002Fcommit\u002F3b5b171e91ce78b966c98b1292a1bcbc8d984799","GitHub",[],{"url":56,"source":57,"tags":58},"https:\u002F\u002Fkde.org\u002Finfo\u002Fsecurity\u002Fadvisory-20210429-1.txt","Kde",[59],"Vendor Advisory",2,[62],{"id":63,"name":64,"description":65,"extendedDescription":66,"status":67,"abstraction":68,"structure":69},"CWE-312","Cleartext Storage of Sensitive Information","The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere.","Because the information is stored in cleartext (i.e., unencrypted), attackers could potentially read it. Even if the information is encoded in a way that is not human-readable, certain techniques could determine which encoding is being used, then decode the information.\nWhen organizations adopt cloud services, it can be easier for attackers to access the data from anywhere on the Internet.\nIn some systems\u002Fenvironments such as cloud, the use of \"double encryption\" (at both the software and hardware layer) might be required, and the developer might be solely responsible for both layers, instead of shared responsibility with the administrator of the broader system\u002Fenvironment.","Draft","Base","Simple",false,[],{"title":73,"metaDescription":74,"keywords":75,"canonicalUrl":76,"structuredData":77},"What is CVE-2021-31855? Vulnerability Analysis | Security Advisory | Precursor Intelligence","Comprehensive analysis of CVE-2021-31855, a medium severity cyber security vulnerability from 2021. KDE Messagelib through 5.17.0 reveals cleartext of encryp...","CVE-2021-31855, CVE-2021-31855 vulnerability, CVE-2021-31855 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, kde security, messagelib vulnerability","\u002Fwhat-is\u002Fcve-2021-31855",{"@context":78,"@type":79,"headline":73,"description":74,"datePublished":10,"dateModified":11,"author":80,"publisher":84,"about":88,"mainEntityOfPage":92,"articleSection":95,"keywords":96},"https:\u002F\u002Fschema.org","TechArticle",{"@type":81,"name":82,"url":83},"Organization","Precursor Intelligence","https:\u002F\u002Fprecursorintelligence.com",{"@type":81,"name":82,"url":83,"logo":85},{"@type":86,"url":87},"ImageObject","https:\u002F\u002Fprecursorintelligence.com\u002Fimg\u002Flogos\u002Feplogo.png",{"@type":89,"name":6,"description":90,"additionalType":91},"Thing","Cybersecurity Vulnerability","https:\u002F\u002Fschema.org\u002FSoftwareBug",{"@type":93,"@id":94},"WebPage","https:\u002F\u002Fprecursorintelligence.com\u002Fwhat-is\u002Fcve-2021-31855","Cybersecurity","CVE-2021-31855, CVE-2021-31855 vulnerability, CVE-2021-31855 security, medium severity vulnerability, cybersecurity, vulnerability analysis, security advisory, CVE database, threat intelligence, security research",[98],{"Operator":27,"Negate":27,"Nodes":99},[100],{"Operator":101,"Negate":27,"CPEMatch":102},"OR",[103],{"Vulnerable":4,"Criteria":48,"MatchCriteriaID":104,"VersionStartExcluding":27,"VersionStartIncluding":27,"VersionEndExcluding":27,"VersionEndIncluding":105},"7C200D2E-D8B6-4C8B-8477-8BF09382E158","5.17.0",[],[],{"lastModified":11,"cacheTime":109,"version":33},1792352508229,{"score":111,"band":112,"action":113,"scoredAt":114},23,"Low","Monitor","2026-10-16T06:51:13.93959+00:00"]