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MEDIUM severity

CVE-2020-13676 — core

MEDIUMFix: drupal/core@8e8e3d2

CVE-2020-13676 is a medium-severity (CVSS 6.5) CWE-284 vulnerability in drupal/core. A fix is available for drupal/core — see the affected versions and patch details below.

Incorrect Authorization in Drupal core

Also known asBIT-drupal-2020-13676DRUPAL-CORE-2021-009GHSA-qfhg-m6r8-xxpj
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Oct 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk+0.01%
Lower risk than most CVEs55th percentile — riskier than 55% of all scored CVEsHighest risk
0.00%0.43%0.87%1.30%0.3%0.8%0.8%Apr 26Jul 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2020-13676 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

3 pkgs affected
🐘drupal/core🐘drupal/core🐘drupal/core

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

The QuickEdit module does not properly check access to fields in some circumstances, which can lead to unintended disclosure of field data. Sites are only affected if the QuickEdit module (which comes with the Standard profile) is installed.

Affected Packages

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistdrupal/core≥ 8.0.0&&< 8.9.198.9.19composer require drupal/core:^8.9.19
🐘Packagistdrupal/core≥ 9.1.0&&< 9.1.139.1.13composer require drupal/core:^9.1.13
🐘Packagistdrupal/core≥ 9.2.0&&< 9.2.69.2.6composer require drupal/core:^9.2.6

Affected Products

1 product · 3 configurations
Application
drupaldrupal
≥ 9.2.0 && < 9.2.6
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update drupal/core to 8.9.19 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-13676 is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

The QuickEdit module does not properly check access to fields in some circumstances, which can lead to unintended disclosure of field data. Sites are only affected if the QuickEdit module (which comes with the Standard profile) is installed.
O3 Security · Impact-Aware SCA

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CVE-2020-13676: core — Fixed in 8.9.19