CVE-2026-45243 — Summarize < 0.15.1 Browser Extension Missing Authorization via Content Script
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 oper…
Published: 2026-05-18 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7