Vulnerability · Published Jan 20, 2026 · Assigned by Foxit
CVE-2025-66523Reflected Cross-Site Scripting (XSS) Vulnerability in na1.foxitesign.foxit.com via Unsanitized URL Parameters
Medium 6.1
In plain English
A medium-severity cross-site scripting in na1.foxitesign.foxit.com from Foxit Software Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 91.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
URL parameters are directly embedded into JavaScript code or HTML attributes without proper encoding or sanitization. This allows attackers to inject arbitrary scripts when an authenticated user visits a crafted link. This issue affects na1.foxitesign.foxit.com: before 2026‑01‑16.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Foxit Software Inc. | na1.foxitesign.foxit.com | before 2026‑01‑16 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N