CVE-2025-66939: XSS
Published Jan 12, 2026
·Updated
Cross Site Scripting vulnerability in 66biolinks by AltumCode v.61.0.1 allows an attacker to execute arbitrary code via a crafted favicon file
Affected Software
2 affected components
AltumCode 66biolinks
AltumCode 66biolinks=61.0.1
Event History
Jan 12, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·04:16 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2025-66939?
CVE-2025-66939 has a high severity due to its potential for executing arbitrary code via a crafted favicon.
2
How do I fix CVE-2025-66939?
To fix CVE-2025-66939, update to the latest version of AltumCode 66biolinks, which addresses this vulnerability.
3
What type of vulnerability is CVE-2025-66939?
CVE-2025-66939 is a Cross Site Scripting (XSS) vulnerability.
4
Who is affected by CVE-2025-66939?
Users of AltumCode 66biolinks version 61.0.1 are affected by CVE-2025-66939.
5
Can CVE-2025-66939 be exploited remotely?
Yes, CVE-2025-66939 can be exploited remotely if an attacker uploads a malicious favicon.