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Medium 6.1Published Jan 20, 2026

CVE-2025-66523Reflected Cross-Site Scripting (XSS) Vulnerability in na1.foxitesign.foxit.com via Unsanitized URL Parameters

Updated under an hour ago ()

Does this affect you?

It affects Foxit Software Inc. na1.foxitesign.foxit.com and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Foxit
NVD analysis
Analyzed
Record last updated
Jan 20, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Foxit Software Inc. na1.foxitesign.foxit.com
foxit_software:na1.foxitesign.foxit.com (from the name)
before 2026‑01‑16
CNA record
foxit esign
foxit:esign
before 2026-01-16
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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