CVE-2026-45243
Summarize prior to 0.15.1 contains a missing authorization vulnerability in the content script window.postMessage bridge that allows malicio
CVSS
6.1
Medium
EPSS
0.2%
p9
KEV
—
Exploit Today
3
0-100
Published: May 18, 2026 · Last modified: Jul 14, 2026 · CWE-862
0.2%EPSS · 30 days0.2%
2026-06-302026-07-17
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.
- github.comhttps://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd
- github.comhttps://github.com/steipete/summarize/pull/222
- github.comhttps://github.com/steipete/summarize/releases/tag/v0.15.2
- www.vulncheck.comhttps://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-277718.2 HIG98.5%
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