Reflected Cross-Site Scripting (XSS) Vulnerability in na1.foxitesign.foxit.com via Unsanitized URL Parameters
Summary
| CVE | CVE-2025-66523 |
|---|---|
| State | PUBLISHED |
| Assigner | Foxit |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-01-20 07:15:48 UTC |
| Updated | 2026-04-09 14:48:56 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 6.1 MEDIUM from 14984358-7092-470d-8f34-ade47a7658a2
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.000410000 probability, percentile 0.122980000 (date 2026-04-15)
Problem Types: CWE-79 | CWE-79 CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 14984358-7092-470d-8f34-ade47a7658a2 | Secondary | 6.1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| 3.1 | CNA | CVSS | 6.1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
ChangedConfidentiality
LowIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Foxit Software Inc. | Na1.foxitesign.foxit.com | affected before 2026‑01‑16 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.foxit.com/support/security-bulletins.html | 14984358-7092-470d-8f34-ade47a7658a2 | www.foxit.com | Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Novee (en)
There are currently no legacy QID mappings associated with this CVE.