Is CVE-2026-3106 actively exploited?

No active exploitation of CVE-2026-3106 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3106 be exploited remotely?

Yes. CVE-2026-3106 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3106?

CVE-2026-3106 has a CVSS score of 9.3 (CRITICAL).

HOME VULNERABILITIESCVE-2026-3106

CRITICAL

CVE-2026-3106

CWE-79Published: March 31, 2026· Updated: Apr 1, 2026

9.3

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:15.4th

Official Description

Blind Cross-Site Scripting (XSS) in Teampass, versions prior to 3.1.5.16, within the password manager login functionality in the 'contraseña' parameter of the login form 'redacted/index.php'. During failed authentication attempts, the application does not properly clean or encode the information entered by the user in the username field. As a result, arbitrary JavaScript code is automatically executed in the administrator's browser when viewing failed login entries, resulting in a blind XSS condition.

NVD Source

Technical Analysis

CVE-2026-3106 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.None

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X