{"id":"CVE-2026-45243","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-05-18T19:16:28.387","lastModified":"2026-10-14T20:10:00.190","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Summarize prior to 0.15.1 contains a missing authorization vulnerability in the content script window.postMessage bridge that allows malicious pages to perform unauthorized operations on automation artifacts. Attackers can simulate runtime messages with spoofed sender identifiers to list, read, create, overwrite, or delete automation artifacts scoped to the affected tab without proper authorization checks."},{"lang":"es","value":"Summarize anterior a 0.15.1 contiene una vulnerabilidad de autorización faltante en el puente window.postMessage del script de contenido que permite a páginas maliciosas realizar operaciones no autorizadas en artefactos de automatización. Los atacantes pueden simular mensajes en tiempo de ejecución con identificadores de remitente falsificados para listar, leer, crear, sobrescribir o eliminar artefactos de automatización con ámbito en la pestaña afectada sin las comprobaciones de autorización adecuadas."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"steipete","product":"summarize","defaultStatus":"affected","repo":"https://github.com/steipete/summarize","packageURL":"pkg:npm/%40steipete/summarize","versions":[{"version":"0","lessThan":"0.15.1","versionType":"semver","status":"affected"},{"version":"357544063af535bd574752622f9eb94be33ee5fd","versionType":"git","status":"unaffected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","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":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-19T16:22:54.365083Z","id":"CVE-2026-45243","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Secondary","description":[{"lang":"en","value":"CWE-862"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*","versionEndExcluding":"0.15.1","matchCriteriaId":"FDA6FF18-A9BB-4892-B428-AB85BB58E16A"}]}]}],"references":[{"url":"https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd","source":"disclosure@vulncheck.com","tags":["Patch"]},{"url":"https://github.com/steipete/summarize/pull/222","source":"disclosure@vulncheck.com","tags":["Exploit","Issue Tracking","Patch"]},{"url":"https://github.com/steipete/summarize/releases/tag/v0.15.2","source":"disclosure@vulncheck.com","tags":["Release Notes"]},{"url":"https://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]}]}