CVE-2025-26159: Nasirkhan/laravel starter Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-fpx3-h2pc-88vf
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2025-26159 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Nasirkhan/laravel starter libraries in the Packagist ecosystem. The issue involves laravel starter cross site scripting (xss). Remediation is available by upgrading affected packages to version 11.11.0.

CVE-2025-26159 at a Glance

CVE Identifier CVE-2025-26159
GHSA Identifier GHSA-fpx3-h2pc-88vf
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Nasirkhan/laravel starter
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-2025-26159

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

nasirkhan/laravel-starter fixed: 11.11.0 
Upgrade nasirkhan/laravel-starter to 11.11.0
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 nasirkhan/laravel-starter

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-26159, inspect your project dependencies for Nasirkhan/laravel starter:

inspect dependencies for nasirkhan/laravel-starter

Analyze the terminal output to locate any version of Nasirkhan/laravel starter in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 11.11.0), 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 Nasirkhan/laravel starter, 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 Starter 11.11.0 is vulnerable to Cross Site Scripting (XSS) in the tags feature. Any user with the ability of create or modify tags can inject malicious JavaScript code in the name field.

CVE-2025-26159 Affected Nasirkhan/laravel starter Versions

1 component(s)
Fixed Versions:
11.11.0
Product / Package Ecosystem Affected Versions Fixed Version
nasirkhan/laravel-starter
 Packagist
< 11.11.0
11.11.0

References

NVD — CVE-2025-26159 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-26159
Nasirkhan/laravel starter Source Repository REPOSITORY
https://github.com/nasirkhan/laravel-starter
godbadtry.github.io/posts/cve-2025-2615... WEB
https://godbadtry.github.io/posts/CVE-2025-26159

Frequently Asked Questions

What is CVE-2025-26159?
CVE-2025-26159 is a security vulnerability in Nasirkhan/laravel starter involving Laravel Starter Cross Site Scripting (XSS) under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Nasirkhan/laravel starter versions are affected?
Affected versions include releases prior to 11.11.0 across affected packages: nasirkhan/laravel-starter.
What version fixes CVE-2025-26159?
Upgrading to 11.11.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nasirkhan/laravel-starter affected?
Yes, nasirkhan/laravel-starter is affected in releases prior to 11.11.0. Upgrade your dependency to 11.11.0 or later.
What is the CVSS score of CVE-2025-26159?
CVE-2025-26159 has a CVSS v3.1 base score of 6.1 (MODERATE) 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-2025-26159?
CVE-2025-26159 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-2025-26159?
Run the dependency tree command: 'inspect dependencies for nasirkhan/laravel-starter'. 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-fpx3-h2pc-88vf",
  "modified" : "2025-04-22T22:16:36Z",
  "published" : "2025-04-22T21:30:44Z",
  "aliases" : [ "CVE-2025-26159" ],
  "summary" : "Laravel Starter Cross Site Scripting (XSS)",
  "details" : "Laravel Starter 11.11.0 is vulnerable to Cross Site Scripting (XSS) in the tags feature. Any user with the ability of create or modify tags can inject malicious JavaScript code in the name field.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "nasirkhan/laravel-starter"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "11.11.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-26159"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nasirkhan/laravel-starter"
  }, {
    "type" : "WEB",
    "url" : "https://godbadtry.github.io/posts/CVE-2025-26159"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-22T22:16:36Z",
    "nvd_published_at" : "2025-04-22T20:15:28Z"
  }
}