CVE-2026-3106

critical · 9.3

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.

9.3

CVSS

0.2%

EPSS (exploit prob.)

5th

EPSS percentile

2026-03-31

Published

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

Weaknesses

CWE-79

Affected products

Vendor	Product	Affected versions
teampass	teampass	>= 3.1.5.16, < 3.1.5.24

Check a specific version with /api/v1/cve/match.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-teampass

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-3106