CVE-2026-45243

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 v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*

History

14 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) Summarize anterior a 0.15.1 contiene una vulnerabilidad de autorización faltante en el puente window.postMessage del script de contenido que permite a páginas maliciosas realizar operaciones no autorizadas en artefactos de automatización. Los atacantes pueden simular mensajes en tiempo de ejecución con identificadores de remitente falsificados para listar, leer, crear, sobrescribir o eliminar artefactos de automatización con ámbito en la pestaña afectada sin las comprobaciones de autorización adecuadas.

Information

Published : 2026-05-18 19:16

Updated : 2026-10-14 20:10

NVD link : CVE-2026-45243

Mitre link : CVE-2026-45243

CVE.ORG link : CVE-2026-45243

JSON object : View

Products Affected

steipete

summarize

CWE

CWE-862

Missing Authorization

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