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Not in CISA KEV
MEDIUM severity

CVE-2025-31697 — formatter_suite

MEDIUM

CVE-2025-31697 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in drupal/formatter_suite. A fix is available for drupal/formatter_suite — see the affected versions and patch details below.

Formatter Suite - Moderately critical - Cross site scripting - SA-CONTRIB-2025-026

Also known asDRUPAL-CONTRIB-2025-026GHSA-5r66-vgc7-2mm3
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-31697.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs18th percentile — riskier than 18% of all scored CVEsHighest risk
0.00%0.30%0.59%0.89%0.4%0.3%May 26Sep 26Nov 26

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘drupal/formatter_suite

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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Formatter Suite allows Cross-Site Scripting (XSS).This issue affects Formatter Suite: from 0.0.0 before 2.1.0.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistdrupal/formatter_suiteall versions2.1.0composer require drupal/formatter_suite:^2.1.0

Affected Products

1 product · 1 configurations
Application
formatter suiteformatter_suite_project
< 2.1.0
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/formatter_suite, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update drupal/formatter_suite to 2.1.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-31697 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Drupal Formatter Suite allows Cross-Site Scripting (XSS).This issue affects Formatter Suite: from 0.0.0 before 2.1.0.
O3 Security · Impact-Aware SCA

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CVE-2025-31697: formatter_suite XSS — Fixed in 2.1.0