Description
Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored tokens without verifying event trustworthiness. Attackers can place local or private-network URLs behind hoverable links to route authenticated requests through the daemon, potentially accessing sensitive internal endpoints when users interact with attacker-controlled content.
Published: 2026-05-18
Score: 4.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-2r69-qgv3-hr65 Summarize's hover summary feature allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links
History

Tue, 19 May 2026 01:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*

Mon, 18 May 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 18 May 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Steipete
Steipete summarize
Vendors & Products Steipete
Steipete summarize

Mon, 18 May 2026 19:30:00 +0000

Type Values Removed Values Added
Description Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored tokens without verifying event trustworthiness. Attackers can place local or private-network URLs behind hoverable links to route authenticated requests through the daemon, potentially accessing sensitive internal endpoints when users interact with attacker-controlled content.
Title Summarize < 0.15.1 Unauthorized Daemon Request via Untrusted Events
Weaknesses CWE-918
CWE-940
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N'}


Subscriptions

Steipete Summarize
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-18T20:31:54.413Z

Reserved: 2026-05-11T14:14:49.613Z

Link: CVE-2026-45245

cve-icon Vulnrichment

Updated: 2026-05-18T20:29:40.298Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-18T20:16:38.593

Modified: 2026-06-17T10:51:49.280

Link: CVE-2026-45245

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-18T20:30:05Z

Weaknesses