6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2025-31697

CVE-2025-31697: Drupal Formatter Suite Vulnerable to Cross-Site Scripting (XSS) via Link Element Attributes

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.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-31697

CVE-2025-31697:

6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
drupal/formatter_suite	composer	< 2.1.0	2.1.0

Technical Details

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Root Cause Analysis

The vulnerability stems from improper attribute handling in Formatter Suite's link field formatter. While the exact code diff isn't available, the security advisory explicitly:

Names the link formatter component as vulnerable
States it failed to properly implement Drupal core's attribute sanitization
Requires concurrent updates with core's XSS fixes

In Drupal architecture, field formatters implement viewElements() to render field values. The FormatterSuiteLinkFormatter would be responsible for building link render arrays, including handling attributes. Before the patch, this method likely passed raw user-controlled attributes to the render system without adequate filtering, which would appear in profilers when rendering vulnerable link fields.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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