Foxit na1.foxitesign.foxit.com HTML Attribute HTML injection

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Foxit na1.foxitesign.foxit.com. The affected element is an unknown function of the component HTML Attribute Handler. Such manipulation leads to HTML injection. This vulnerability is referenced as CVE-2025-66523. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Foxit na1.foxitesign.foxit.com (affected version unknown). Affected by this issue is an unknown functionality of the component HTML Attribute Handler. The manipulation with an unknown input leads to a html injection vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

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.

The weakness was published by Novee. The advisory is available at foxit.com. This vulnerability is handled as CVE-2025-66523 since 12/04/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0934). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Foxit PDF Editor
  • Foxit PDF Reader

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (Foxit): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: HTML injection
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/04/2025 CVE reserved
01/20/2026 +47 days Advisory disclosed
01/20/2026 +0 days VulDB entry created
03/31/2026 +70 days VulDB entry last update

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: foxit.com
Researcher: Novee
Status: Confirmed

CVE: CVE-2025-66523 (🔒)
GCVE (CVE): GCVE-0-2025-66523
GCVE (VulDB): GCVE-100-341930
CERT Bund: WID-SEC-2026-0934 - Foxit PDF Editor und Reader: Mehrere Schwachstellen

Entryinfo

Created: 01/20/2026 09:05
Updated: 03/31/2026 21:34
Changes: 01/20/2026 09:05 (63), 03/31/2026 21:34 (7)
Complete: 🔍
Cache ID: 216:236:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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