{"id":"CVE-2026-45243","revision":"96cc3661d85e407f9cfb8b930872107c","records":[{"revision":"96cc3661d85e407f9cfb8b930872107c","observedAt":"2026-10-25T10:17:33.838+00:00","statement":{"source":"nvd","id":"CVE-2026-45243","aliases":[],"title":"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 …","description":"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.","state":0,"publishedAt":"2026-05-18T19:16:28.387+00:00","modifiedAt":"2026-10-14T20:10:00.19+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"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","score":5.3,"severity":"MEDIUM"},{"system":"CVSS 3.1 · disclosure@vulncheck.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1,"severity":"MEDIUM"}],"references":["https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd","https://github.com/steipete/summarize/pull/222","https://github.com/steipete/summarize/releases/tag/v0.15.2","https://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-45243","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-862"],"productCriteria":["cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-05-18T19:16:28.387","lastModified":"2026-10-14T20:10:00.190"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-45243","identifiers":["CVE-2026-45243"]},"retained":false,"historicalAffected":[]}],"coverage":[]}