CVE-2025-66521
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-19

Last updated on: 2025-12-23

Assigner: Foxit

Description
A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Trusted Certificates feature. A crafted payload can be injected as the certificate name, which is later rendered into the DOM without proper sanitization. As a result, the injected script executes each time the Trusted Certificates view is loaded.
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Meta Information
Published
2025-12-19
Last Modified
2025-12-23
Generated
2026-06-16
AI Q&A
2025-12-19
EPSS Evaluated
2026-06-14
NVD
CVE-2025-66521
EUVD
EUVD-2025-204455
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
foxit pdf_editor_cloud to 2025-12-01 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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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.
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Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in the Trusted Certificates feature of pdfonline.foxit.com. An attacker can inject a malicious script by crafting a payload as the certificate name. This script is then stored and executed every time the Trusted Certificates view is loaded because the input is not properly sanitized before being rendered in the DOM.

Impact Analysis

The vulnerability can lead to the execution of malicious scripts in the context of the user's browser when viewing the Trusted Certificates. This can result in unauthorized actions such as stealing sensitive information, session hijacking, or performing actions on behalf of the user without their consent.

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