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TeampassApplication

CVE-2026-3107

MEDIUM · 5.4 CVSS v3.1 Published 2026-03-31
Fix available
A fix is available. Upgrade to 3.1.5.24 or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Stored Cross-Site Scripting (XSS) in Teampass versions prior to 3.1.5.16, affecting the password manager's password import functionality at the endpoint 'redacted/index.php?page=items'. The application fails to properly sanitize and encode user-input data during the import process, allowing malicious JavaScript payloads to be persistently stored in the database. When other users view the imported passwords, the payload is automatically executed in their browsers, resulting in a stored XSS condition at the endpoint 'redacted/index.php?page=items'. Exploiting this vulnerability allows an attacker to execute arbitrary JavaScript code in the context of multiple users and the administrator, which can lead to session hijacking, credential theft, privilege abuse, and compromise of application integrity.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Stored XSS vulnerability in Teampass password import functionality allows attackers to inject malicious JavaScript payloads through the import process. The payloads are persistently stored in the database and execute automatically when other users view the imported passwords at the items page, enabling session hijacking and credential theft.

MitigationUpgrade to Teampass version 3.1.5.16 or later. Additionally, implement proper input validation and output encoding for all user-supplied data in the password import and display functionality.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
TeampassApplication
Affected:>= 3.1.5.16, < 3.1.5.24

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Teampass version
    Access the Teampass admin panel and navigate to 'About' or 'Settings' page, or check the version.php file in the installation directory. Alternatively, inspect the response headers or footer of the web interface for the version number.
    Affected if Version is 3.1.5.16 or higher but lower than 3.1.5.24
  2. Review password import feature usage logs
    Check Teampass audit logs or access logs for entries related to 'import' functionality, particularly CSV or password import operations. Look for the import feature under Items > Import passwords.
    Affected if Password import functionality has been used and the version falls within the affected range
  3. Inspect database for suspicious entries in password fields
    Query the Teampass database (typically table 'items' or similar) and examine the 'password' or 'description' fields for HTML script tags, JavaScript event handlers, or encoded payloads. Look for patterns like '<script>', 'javascript:', 'onerror=', 'onload='.
    Affected if Any password or description fields contain unencoded HTML/JavaScript content indicating exploitation
  4. Check item list page for unexpected script execution
    As a test, view the items page in Teampass (where imported passwords are displayed) using a browser with JavaScript disabled or using developer tools to inspect page source. Look for any script tags or event handlers in password field outputs.
    Affected if Output contains raw HTML or script tags instead of sanitized text when viewing imported items

The environment is affected if Teampass version is 3.1.5.16 or higher but lower than 3.1.5.24 and the password import feature has been used, or if XSS payloads are found in the database.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 3.1.5.24 or later
Fixed in 3.1.5.24
Interim mitigation

Upgrade to Teampass version 3.1.5.16 or later. Additionally, implement proper input validation and output encoding for all user-supplied data in the password import and display functionality.

Recommended fix Moderate confidence

Teampass 3.1.5.24

  1. Backup the Teampass database and files before proceeding with any changes
  2. Download Teampass version 3.1.5.24 or a later stable release from the official Teampass repository (github.com/nilsteampassnet/TeamPass)
  3. Follow the official Teampass upgrade instructions to apply the update
  4. Verify the upgrade was successful by logging into the application
  5. Confirm the password import functionality at items endpoint no longer executes unsanitized JavaScript

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Teampass Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing5.0 h
  • Review / QA3.0 h
17.0 hours of engineering $2,970
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-3107 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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