BaseFortify

Publication date: 2025-12-19

Last updated on: 2025-12-23

Assigner: Foxit

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-12-19

Last Modified

2025-12-23

Generated

2026-07-06

AI Q&A

2025-12-19

EPSS Evaluated

2026-07-05

NVD

CVE-2025-66520

EUVD

EUVD-2025-204456

Affected Vendors & Products

Vendor	Product	Version / Range
foxit	pdf_editor_cloud	to 2025-12-01 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in the Portfolio feature of Foxit PDF Editor cloud. It occurs because user-supplied SVG files are not properly sanitized or validated before being inserted into the HTML structure. As a result, malicious HTML or JavaScript embedded within a crafted SVG file can execute when the Portfolio file list is displayed.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the context of the affected application, potentially leading to unauthorized actions such as stealing sensitive information, session hijacking, or performing actions on behalf of the user. Since it affects the Portfolio feature when rendering SVG files, users viewing the Portfolio could be exposed to these risks.

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