CVE-2026-45243 (GCVE-0-2026-45243)

Vulnerability from cvelistv5 – Published: 2026-05-18 18:50 – Updated: 2026-10-08 15:22 X_Open Source
VLAI
Title
Summarize < 0.15.1 Browser Extension Missing Authorization via Content Script
Summary
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.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 16:22 UTC
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6250 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
steipete summarize Affected: 0 , < 0.15.1 (semver)
Unaffected: 357544063af535bd574752622f9eb94be33ee5fd (git)
guessed Create a notification for this product.
Date Public
2026-05-11 00:00
Credits
Chia Min Jun Lennon
Show details on NVD website
To clipboard 

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