nilsteampassnet/teampass vulnerable to cross-site scripting

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2023-3009: 0.68% estimated exploitation activity in the next 30 days; percentile 52.59 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Cross-site Scripting (XSS) - Stored in GitHub repository nilsteampassnet/teampass prior to 3.0.9. This enables an attacker to inject malicious code into a shared folder, which can then be executed by other users who have access to the folder.

Published by the source

31 May 2023, 15:30 UTC

Last modified by the source

4 Nov 2023, 05:03 UTC

Source last checked

26 Oct 2026, 14:10 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-h5g9-2p35-54c7

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# Patch Next advisory brief: CVE-2023-3009

Advisory: nilsteampassnet/teampass vulnerable to cross-site scripting
IDs: CVE-2023-3009, GHSA-h5g9-2p35-54c7
Record: https://patchnext.com/advisories/cve-2023-3009 (revision 1, source checked 26 Oct 2026, 14:10 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: nilsteampassnet/teampass 3.0.9. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist nilsteampassnet/teampass: affected < 3.0.9; fixed in 3.0.9

## Suggested inspection (read-only)
- Packagist nilsteampassnet/teampass: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on nilsteampassnet/teampass.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-h5g9-2p35-54c7 (GitHub-reviewed advisory GHSA-h5g9-2p35-54c7 lists affected ranges: Packagist nilsteampassnet/teampass >=0 <3.0.9)

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