CVE-2025-31697: Drupal/formatter suite Cross-Site Scripting Vulnerability

LOW
Advisory Identifier: GHSA-5r66-vgc7-2mm3
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2025-31697 is a LOW (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Drupal/formatter suite libraries in the Packagist ecosystem. The issue involves drupal formatter suite vulnerable to cross-site scripting (xss) via link element attributes. Remediation is available by upgrading affected packages to version 2.1.0.

CVE-2025-31697 at a Glance

CVE Identifier CVE-2025-31697
GHSA Identifier GHSA-5r66-vgc7-2mm3
Severity LOW
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Drupal/formatter suite
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-31697

To remediate this vulnerability, upgrade all affected Drupal/formatter suite dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

drupal/formatter_suite fixed: 2.1.0 
Upgrade drupal/formatter_suite to 2.1.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for drupal/formatter_suite

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-31697, inspect your project dependencies for Drupal/formatter suite:

inspect dependencies for drupal/formatter_suite

Analyze the terminal output to locate any version of Drupal/formatter suite in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Drupal/formatter suite, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2025-31697 Affected Drupal/formatter suite Versions

1 component(s)
Fixed Versions:
2.1.0
Product / Package Ecosystem Affected Versions Fixed Version
drupal/formatter_suite
 Packagist
< 2.1.0
2.1.0

References

NVD — CVE-2025-31697 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-31697
git.drupalcode.org/project/formatter_s... PACKAGE
https://git.drupalcode.org/project/formatter_suite
git.drupalcode.org/project/formatter_s... WEB
https://git.drupalcode.org/project/formatter_suite/-/commit/58adb4168466b056e33fc4f356f43dd000e3765b
www.drupal.org/sa-contrib-2025-026 WEB
https://www.drupal.org/sa-contrib-2025-026

Frequently Asked Questions

What is CVE-2025-31697?
CVE-2025-31697 is a security vulnerability in Drupal/formatter suite involving Drupal Formatter Suite Vulnerable to Cross-Site Scripting (XSS) via Link Element Attributes under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Drupal/formatter suite versions are affected?
Affected versions include releases prior to 2.1.0 across affected packages: drupal/formatter_suite.
What version fixes CVE-2025-31697?
Upgrading to 2.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/formatter_suite affected?
Yes, drupal/formatter_suite is affected in releases prior to 2.1.0. Upgrade your dependency to 2.1.0 or later.
What is the CVSS score of CVE-2025-31697?
CVE-2025-31697 has a CVSS v3.1 base score of 6.1 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2025-31697?
CVE-2025-31697 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2025-31697?
Run the dependency tree command: 'inspect dependencies for drupal/formatter_suite'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-5r66-vgc7-2mm3",
  "modified" : "2025-04-29T20:26:56Z",
  "published" : "2025-04-01T00:30:35Z",
  "aliases" : [ "CVE-2025-31697" ],
  "summary" : "Drupal Formatter Suite Vulnerable to Cross-Site Scripting (XSS) via Link Element Attributes",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/formatter_suite"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-31697"
  }, {
    "type" : "PACKAGE",
    "url" : "https://git.drupalcode.org/project/formatter_suite"
  }, {
    "type" : "WEB",
    "url" : "https://git.drupalcode.org/project/formatter_suite/-/commit/58adb4168466b056e33fc4f356f43dd000e3765b"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-contrib-2025-026"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-02T17:16:39Z",
    "nvd_published_at" : "2025-03-31T22:15:22Z"
  }
}