{"api_version":"1","generated_at":"2026-05-02T12:25:37+00:00","cve":"CVE-2026-7491","urls":{"html":"https://cve.report/CVE-2026-7491","api":"https://cve.report/api/cve/CVE-2026-7491.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-7491","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-7491"},"summary":{"title":"Zyosoft｜School App - Insecure Direct Object Reference","description":"School App developed by Zyosoft has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify a specific parameter to read and modify other users' data.","state":"PUBLISHED","assigner":"twcert","published_at":"2026-05-02 10:16:19","updated_at":"2026-05-02 10:16:19"},"problem_types":["CWE-639","CWE-639 CWE-639 Authorization bypass through User-Controlled key"],"metrics":[{"version":"4.0","source":"twcert@cert.org.tw","type":"Secondary","score":"8.6","severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"CVSS","score":"8.6","severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","data":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"}},{"version":"3.1","source":"twcert@cert.org.tw","type":"Primary","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://www.twcert.org.tw/tw/cp-132-10896-e3240-1.html","name":"https://www.twcert.org.tw/tw/cp-132-10896-e3240-1.html","refsource":"twcert@cert.org.tw","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.twcert.org.tw/en/cp-139-10897-64257-2.html","name":"https://www.twcert.org.tw/en/cp-139-10897-64257-2.html","refsource":"twcert@cert.org.tw","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-7491","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7491","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Zyosoft","product":"School App","version":"affected 1.1.62 custom","platforms":["Android"]},{"source":"CNA","vendor":"Zyosoft","product":"School App","version":"affected 2.7.2 custom","platforms":["MacOS"]}],"timeline":[],"solutions":[{"source":"CNA","title":"","value":"Update School App (Android) to version 1.1.62 or later\n\nUpdate School App (iOS) to version 2.7.2 or later","time":"","lang":"en"}],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["Android"],"product":"School App","vendor":"Zyosoft","versions":[{"lessThan":"1.1.62","status":"affected","version":"0","versionType":"custom"}]},{"defaultStatus":"unaffected","platforms":["MacOS"],"product":"School App","vendor":"Zyosoft","versions":[{"lessThan":"2.7.2","status":"affected","version":"0","versionType":"custom"}]}],"datePublic":"2026-05-02T09:08:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"School App developed by Zyosoft has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify a specific parameter to read and modify other users' data."}],"value":"School App developed by Zyosoft has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify a specific parameter to read and modify other users' data."}],"impacts":[{"capecId":"CAPEC-21","descriptions":[{"lang":"en","value":"CAPEC-21 Exploitation of Trusted Identifiers"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","description":"CWE-639 Authorization bypass through User-Controlled key","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-02T09:14:25.760Z","orgId":"cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e","shortName":"twcert"},"references":[{"tags":["third-party-advisory"],"url":"https://www.twcert.org.tw/tw/cp-132-10896-e3240-1.html"},{"tags":["third-party-advisory"],"url":"https://www.twcert.org.tw/en/cp-139-10897-64257-2.html"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Update School App (Android) to version 1.1.62 or later\n<br>Update School App (iOS) to version 2.7.2 or later"}],"value":"Update School App (Android) to version 1.1.62 or later\n\nUpdate School App (iOS) to version 2.7.2 or later"}],"source":{"advisory":"TVN-202604013","discovery":"EXTERNAL"},"title":"Zyosoft｜School App - Insecure Direct Object Reference","x_generator":{"engine":"Vulnogram 1.0.2"}}},"cveMetadata":{"assignerOrgId":"cded6c7f-6ce5-4948-8f87-aa7a3bbb6b0e","assignerShortName":"twcert","cveId":"CVE-2026-7491","datePublished":"2026-05-02T09:14:25.760Z","dateReserved":"2026-04-30T09:01:07.205Z","dateUpdated":"2026-05-02T09:14:25.760Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-02 10:16:19","lastModifiedDate":"2026-05-02 10:16:19","problem_types":["CWE-639","CWE-639 CWE-639 Authorization bypass through User-Controlled key"],"metrics":{"cvssMetricV40":[{"source":"twcert@cert.org.tw","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"twcert@cert.org.tw","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"7491","Ordinal":"1","Title":"Zyosoft｜School App - Insecure Direct Object Reference","CVE":"CVE-2026-7491","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"7491","Ordinal":"1","NoteData":"School App developed by Zyosoft has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify a specific parameter to read and modify other users' data.","Type":"Description","Title":"Zyosoft｜School App - Insecure Direct Object Reference"}]}}}