CVE-2025-66501

Foxit pdfonline.foxit.com Stored Cross-Site Scripting in eSign Predefined Text Feature

State: Published
Severity: 6.3 Medium
Published: Dec 19, 2025
Updated: Dec 19, 2025
Reserved: Dec 3, 2025

Description

A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Predefined Text feature of the Foxit eSign section. A crafted payload can be stored via the Identity “First Name” field, which is later rendered into the DOM without proper sanitization. As a result, the injected script may execute when predefined text is used or when viewing document properties.

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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