Vulnerability Report

CVE-2025-66523

Title: Reflected XSS in Foxit Sign

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2025-66523.

CWE Category CWE-79

Published Date Jan 20, 2026

Modified Date Apr 09, 2026

Exploit Status Not Found

Score 6.1 CVSS v3.1

Exploit Probability (EPSS)

0.16%

Vulnerability Summary

CVE-2025-66523: 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.

Impacted Vendors

foxit 1

Reference Links

https://www.foxit.com/support/security-bulletins.html

CVSS v3.1

Source Entity 14984358-7092-470d-8f34-ade47a7658a2

Severity MEDIUM

6.1

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-66523 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 09, 2026 MODIFIED

Vulnerability data updated via NVD.

April 09, 2026 MODIFIED

Vulnerability data updated via NVD.

January 26, 2026 MODIFIED

Vulnerability data updated via NVD.

January 20, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.