GHSA-vr95-p7q6-8m9q: Laravel/framework Cross-Site Scripting Vulnerability

MODERATE
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CVSS 4.3
CWE-79
Published
Advisory Summary

GHSA-vr95-p7q6-8m9q is a MODERATE (CVSS 4.3) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Laravel/framework libraries in the Packagist ecosystem. The issue involves laravel cross-site scripting (xss) vulnerability in blade templating. Remediation is available by upgrading affected packages to version 7.1.2.

GHSA-vr95-p7q6-8m9q at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-vr95-p7q6-8m9q
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Laravel/framework
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.3

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:U/C:N/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 Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix GHSA-vr95-p7q6-8m9q

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

laravel/framework fixed: 7.1.2 
Upgrade laravel/framework to 7.1.2
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 laravel/framework

How to Check if You Are Affected

To determine whether your application is affected by GHSA-vr95-p7q6-8m9q, inspect your project dependencies for Laravel/framework:

inspect dependencies for laravel/framework

Analyze the terminal output to locate any version of Laravel/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.1.2), 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 Laravel/framework, 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

Laravel 7.1.2 addresses a possible XSS related attack vector in the Laravel 7.x Blade Component tag attributes when users are allowed to dictate the value of attributes. All Laravel 7.x users are encouraged to upgrade as soon as possible.

GHSA-vr95-p7q6-8m9q Affected Laravel/framework Versions

1 component(s)
Fixed Versions:
7.1.2
Product / Package Ecosystem Affected Versions Fixed Version
laravel/framework
 Packagist
≥ 7.0.0
< 7.1.2
7.1.2

References

Laravel/framework Source Repository REPOSITORY
https://github.com/laravel/framework/pull/31945
Laravel/framework Release RELEASE
https://blog.laravel.com/security-laravel-712-released
Laravel/framework Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/laravel/framework/2020-03-13-1.yaml
Laravel/framework Source Repository REPOSITORY
https://github.com/laravel/framework
Laravel/framework Release RELEASE
https://github.com/laravel/framework/releases/tag/v7.1.2

Frequently Asked Questions

What is GHSA-vr95-p7q6-8m9q?
GHSA-vr95-p7q6-8m9q is a security vulnerability in Laravel/framework involving Laravel Cross-site Scripting (XSS) vulnerability in blade templating under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Laravel/framework versions are affected?
Affected versions include releases prior to 7.1.2 across affected packages: laravel/framework.
What version fixes GHSA-vr95-p7q6-8m9q?
Upgrading to 7.1.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is laravel/framework affected?
Yes, laravel/framework is affected in releases prior to 7.1.2. Upgrade your dependency to 7.1.2 or later.
What is the CVSS score of GHSA-vr95-p7q6-8m9q?
GHSA-vr95-p7q6-8m9q has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with GHSA-vr95-p7q6-8m9q?
GHSA-vr95-p7q6-8m9q 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 GHSA-vr95-p7q6-8m9q?
Run the dependency tree command: 'inspect dependencies for laravel/framework'. 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-vr95-p7q6-8m9q",
  "modified" : "2024-05-15T22:16:06Z",
  "published" : "2024-05-15T22:16:06Z",
  "aliases" : [ ],
  "summary" : "Laravel Cross-site Scripting (XSS) vulnerability in blade templating",
  "details" : "Laravel 7.1.2 addresses a possible XSS related attack vector in the Laravel 7.x Blade Component tag attributes when users are allowed to dictate the value of attributes. All Laravel 7.x users are encouraged to upgrade as soon as possible.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "laravel/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.1.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/pull/31945"
  }, {
    "type" : "WEB",
    "url" : "https://blog.laravel.com/security-laravel-712-released"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/laravel/framework/2020-03-13-1.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/laravel/framework"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/laravel/framework/releases/tag/v7.1.2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-15T22:16:06Z",
    "nvd_published_at" : null
  }
}