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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd Patch
- https://github.com/steipete/summarize/pull/222 Exploit, Issue Tracking, Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.3 · steipeteNVD modified 2026-10-14 20:10
Affected (CPE criteria) 1
cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*
References 4
- https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd Patch
- https://github.com/steipete/summarize/pull/222 Exploit, Issue Tracking, Patch
- https://github.com/steipete/summarize/releases/tag/v0.15.2 Release Notes
- https://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script Third Party Advisory