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GHSA-hq37-rfjc-mr8h — typo3/cms

GHSA-hq37-rfjc-mr8h is a security vulnerability in typo3/cms. A fix is available for typo3/cms — see the affected versions and patch details below.

Cross-Site Scripting (XSS) in TYPO3 Backend

Published
Jun 5, 2024
Updated
Dec 2, 2024
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Dec 2, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

3 pkgs affected
🐘typo3/cms🐘typo3/cms🐘typo3/cms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Failing to properly encode user input, the page module is vulnerable to Cross-Site Scripting. A valid backend user account with permissions to edit plugins is needed to exploit this vulnerability.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagisttypo3/cms≥ 6.2.0&&< 6.2.276.2.27composer require typo3/cms:^6.2.27
🐘Packagisttypo3/cms≥ 7.6.0&&< 7.6.117.6.11composer require typo3/cms:^7.6.11
🐘Packagisttypo3/cms≥ 8.0.0&&< 8.3.18.3.1composer require typo3/cms:^8.3.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for typo3/cms, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update typo3/cms to 6.2.27 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-hq37-rfjc-mr8h is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-hq37-rfjc-mr8h can be triaged on real exposure rather than presence alone.

Tailored to GHSA-hq37-rfjc-mr8h. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Failing to properly encode user input, the page module is vulnerable to Cross-Site Scripting. A valid backend user account with permissions to edit plugins is needed to exploit this vulnerability.
O3 Security · Impact-Aware SCA

Is GHSA-hq37-rfjc-mr8h in your dependencies?

O3 Security finds GHSA-hq37-rfjc-mr8h across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.

GHSA-hq37-rfjc-mr8h: typo3/cms XSS | O3 Security