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Security Database

CVE

CWE

Training

CVE-2026-45243

Published: May 18, 2026

Modified: May 19, 2026

PUBLISHED

CVSS v3.1

6.1

MEDIUM

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.

Vendor	Product	Versions
steipete	summarize	affected `0 - < 0.15.1` unaffected `357544063af535bd574752622f9eb94be33ee5fd`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

References

https://github.com/steipete/summarize/releases/tag/v0.15.2

release-notes

https://github.com/steipete/summarize/pull/222

issue-tracking

https://github.com/steipete/summarize/commit/357544063af535bd574752622f9eb94be33ee5fd

patch

https://www.vulncheck.com/advisories/summarize-browser-extension-missing-authorization-via-content-script

third-party-advisory

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