CVE-2025-11570: Drupal pattern lab/unified twig extensions Drupal-pattern-lab/unified-twig-extensions Is Vulnerable To XXS Vulnerability

LOW
Advisory Identifier: GHSA-64mv-9655-37hx
Share
CWE-79
Published
Advisory Summary

CVE-2025-11570 is a LOW drupal-pattern-lab/unified-twig-extensions is vulnerable to xxs vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Drupal pattern lab/unified twig extensions libraries in the Packagist ecosystem. The issue involves drupal-pattern-lab/unified-twig-extensions is vulnerable to xxs. Remediation is available in the latest vendor maintenance releases.

CVE-2025-11570 at a Glance

CVE Identifier CVE-2025-11570
GHSA Identifier GHSA-64mv-9655-37hx
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Drupal pattern lab/unified twig extensions
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix CVE-2025-11570

To remediate this vulnerability, upgrade all affected Drupal pattern lab/unified twig extensions 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-pattern-lab/unified-twig-extensions fixed: Latest secure release 
Upgrade drupal-pattern-lab/unified-twig-extensions to Latest secure release
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-pattern-lab/unified-twig-extensions

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-11570, inspect your project dependencies for Drupal pattern lab/unified twig extensions:

inspect dependencies for drupal-pattern-lab/unified-twig-extensions

Analyze the terminal output to locate any version of Drupal pattern lab/unified twig extensions in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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 pattern lab/unified twig extensions, 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

Versions of the package drupal-pattern-lab/unified-twig-extensions from 0.0.0 are vulnerable to Cross-site Scripting (XSS) due to insufficient filtering of data. **Note:** This is exploitable only if the code is executed outside of Drupal; the function is intended to be shared between Drupal and Pattern Lab. The package drupal-pattern-lab/unified-twig-extensions is unmaintained, the fix for this issue exists in version 1.1.1 of [drupal/unified_twig_ext](https://www.drupal.org/project/unified_twig_ext), but is not published to the Composer PHP registry.

CVE-2025-11570 Affected Drupal pattern lab/unified twig extensions Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
drupal-pattern-lab/unified-twig-extensions
 Packagist
≤ 0.1.0

References

NVD — CVE-2025-11570 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-11570
Drupal pattern lab/unified twig extensions Source Repository REPOSITORY
https://github.com/drupal-pattern-lab/unified-twig-extensions
Drupal pattern lab/unified twig extensions Source Repository REPOSITORY
https://github.com/drupal-pattern-lab/unified-twig-extensions/blob/862b9deccab544ca68e3aaaccc257d14acc9b1f6/example/_twig-components/functions/link.function.php%23L9
Drupal pattern lab/unified twig extensions Security Information SECURITY
https://security.snyk.io/vuln/SNYK-PHP-DRUPALPATTERNLABUNIFIEDTWIGEXTENSIONS-8400877
www.drupal.org/project/unified_twi... WEB
https://www.drupal.org/project/unified_twig_ext
www.drupal.org/sa-contrib-2023-041 WEB
https://www.drupal.org/sa-contrib-2023-041

Frequently Asked Questions

What is CVE-2025-11570?
CVE-2025-11570 is a security vulnerability in Drupal pattern lab/unified twig extensions involving drupal-pattern-lab/unified-twig-extensions is vulnerable to XXS under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Drupal pattern lab/unified twig extensions versions are affected?
Affected versions include releases prior to current release patches across affected packages: drupal-pattern-lab/unified-twig-extensions.
What version fixes CVE-2025-11570?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal-pattern-lab/unified-twig-extensions affected?
Yes, drupal-pattern-lab/unified-twig-extensions is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2025-11570?
CVE-2025-11570 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-2025-11570?
Run the dependency tree command: 'inspect dependencies for drupal-pattern-lab/unified-twig-extensions'. 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-64mv-9655-37hx",
  "modified" : "2025-10-10T23:51:44Z",
  "published" : "2025-10-10T06:30:55Z",
  "aliases" : [ "CVE-2025-11570" ],
  "summary" : "drupal-pattern-lab/unified-twig-extensions is vulnerable to XXS",
  "details" : "Versions of the package drupal-pattern-lab/unified-twig-extensions from 0.0.0 are vulnerable to Cross-site Scripting (XSS) due to insufficient filtering of data.\n\n**Note:**\nThis is exploitable only if the code is executed outside of Drupal; the function is intended to be shared between Drupal and Pattern Lab.\n\nThe package drupal-pattern-lab/unified-twig-extensions is unmaintained, the fix for this issue exists in version 1.1.1 of [drupal/unified_twig_ext](https://www.drupal.org/project/unified_twig_ext), but is not published to the Composer PHP registry.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal-pattern-lab/unified-twig-extensions"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-11570"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/drupal-pattern-lab/unified-twig-extensions"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/drupal-pattern-lab/unified-twig-extensions/blob/862b9deccab544ca68e3aaaccc257d14acc9b1f6/example/_twig-components/functions/link.function.php%23L9"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-PHP-DRUPALPATTERNLABUNIFIEDTWIGEXTENSIONS-8400877"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/project/unified_twig_ext"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-contrib-2023-041"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-10T23:51:44Z",
    "nvd_published_at" : "2025-10-10T05:15:33Z"
  }
}