CVE-2025-66500 | THREATINT

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.

PUBLISHED Reserved 2025-12-03 | Published 2025-12-19 | Updated 2025-12-19 | Assigner Foxit

MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

Product status

Default status

unaffected

before 2025‑12‑01

affected

Credits

Novee finder

References

www.foxit.com/support/security-bulletins.html

cve.org (CVE-2025-66500)

nvd.nist.gov (CVE-2025-66500)

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