A stored cross-site scripting (XSS) vulnerability exists in webplugins.foxit.com. A postMessage handler fails to validate the message origin and directly assigns externalPath to a script source, allowing an attacker to execute arbitrary JavaScript when a crafted postMessage is received.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 19 Dec 2025 07:30:00 +0000

Type Values Removed Values Added
Description A stored cross-site scripting (XSS) vulnerability exists in webplugins.foxit.com. A postMessage handler fails to validate the message origin and directly assigns externalPath to a script source, allowing an attacker to execute arbitrary JavaScript when a crafted postMessage is received.
Title Foxit webplugins.foxit.com Stored Cross-Site Scripting via postMessage Vulnerability
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Foxit

Published:

Updated: 2025-12-19T09:27:02.620Z

Reserved: 2025-12-03T01:33:55.298Z

Link: CVE-2025-66500

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-12-19T08:15:52.963

Modified: 2025-12-19T08:15:52.963

Link: CVE-2025-66500

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses