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Medium, CVSS 6.5

TYPO3 Information Disclosure Vulnerability Exploitable by Editors

GHSA-r287-hc8j-w56h

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (typo3/cms 7.3.1, 6.2.14), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Packagist typo3/cms

    Affected
    >= 6.2.0, < 6.2.14>= 7.0.0, < 7.3.1
    Fixed in
    7.3.1, 6.2.14

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
6.5 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

It has been discovered, that editors with access to the file list module could list all files names and folder names in the root directory of a TYPO3 installation. Modification of files, listing further nested directories or retrieving file contents was not possible. A valid backend user account is needed to exploit this vulnerability.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-r287-hc8j-w56h

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-r287-hc8j-w56h

Advisory: TYPO3 Information Disclosure Vulnerability Exploitable by Editors
IDs: GHSA-r287-hc8j-w56h
Record: https://patchnext.com/advisories/ghsa-r287-hc8j-w56h (revision 1, source checked 26 Oct 2026, 14:25 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.5)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: typo3/cms 7.3.1, 6.2.14. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist typo3/cms: affected >= 6.2.0, < 6.2.14; >= 7.0.0, < 7.3.1; fixed in 7.3.1, 6.2.14

## Suggested inspection (read-only)
- Packagist typo3/cms: 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 typo3/cms.
- 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-r287-hc8j-w56h (GitHub-reviewed advisory GHSA-r287-hc8j-w56h lists affected ranges: Packagist typo3/cms >=6.2.0 =7.0.0 <7.3.1)

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