CVE-2025-66520

Foxit pdfonline.foxit.com Stored Cross-Site Scripting in Portfolio SVG Handling

State: Published
Severity: 6.3 Medium
Published: Dec 19, 2025
Updated: Dec 19, 2025
Reserved: Dec 4, 2025

Description

A stored cross-site scripting (XSS) vulnerability exists in the Portfolio feature of the Foxit PDF Editor cloud (pdfonline.foxit.com). User-supplied SVG files are not properly sanitized or validated before being inserted into the HTML structure. As a result, embedded HTML or JavaScript within a crafted SVG may execute whenever the Portfolio file list is rendered.

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N	Foxit

Weaknesses

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

Affected Products

Product	Versions
pdfonline.foxit.comFoxit Software Inc.	before 2025‑12‑01Affected

References

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

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