{"cve":"CVE-2026-45243","nvd":{"published":"2026-05-18T19:16:28.387","modified":"2026-10-14T20:10:00.190","status":"Analyzed","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.","cvss_v4":{"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","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-862"],"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"],"products":["steipete:summarize"],"source":"nvd","synced_at":"2026-10-19T22:35:16.954578616+00:00"},"epss":{"cve":"CVE-2026-45243","score":0.00195,"percentile":0.09073,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-5624-2pmv-jx46","url":"https://osv.dev/vulnerability/GHSA-5624-2pmv-jx46","summary":"Summarize contains a missing authorization vulnerability","modified":"2026-09-10T03:51:04.593526294Z","packages":[{"ecosystem":"npm","name":"@steipete/summarize","purl":"pkg:npm/%40steipete/summarize","ranges":["<0.15.0"],"fixed":["0.15.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}