Vulnerability Report

CVE-2025-66501

Title: Stored Cross-Site Scripting (XSS) in Predefined Text

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2025-66501.

CWE Category CWE-79
Published Date Dec 19, 2025
Modified Date Dec 23, 2025
Exploit Status Not Found
Score 6.3 CVSS v3.1
Exploit Probability (EPSS)
0.15%

Vulnerability Summary

CVE-2025-66501: 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.

Impacted Vendors

F
foxit 1

Reference Links

https://www.foxit.com/support/security-bulletins.html
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.4
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:L/UI:R/S:C/C:L/I:L/A:N
CVSS v3.1
Source Entity 14984358-7092-470d-8f34-ade47a7658a2
Severity MEDIUM
6.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-66501 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

MODIFIED

Vulnerability data updated via NVD.

PUBLISHED

Vulnerability first announced in 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:L/UI:R/S:C/C:L/I:L/A:N

Affected Stack

No specific products linked.