GHSA-mqq7-wxx5-mp8h: Prestashop/ps checkout Ps_checkout Allows Unauthorized Method Invocation Vulnerability

LOW
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CWE-20
Published
Advisory Summary

GHSA-mqq7-wxx5-mp8h is a LOW ps_checkout allows unauthorized method invocation vulnerability (CWE-20: Improper Input Validation) affecting Prestashop/ps checkout libraries in the Packagist ecosystem. The issue involves ps_checkout allows unauthorized method invocation through unvalidated parameter. Remediation is available by upgrading affected packages to version 5.3.0.

GHSA-mqq7-wxx5-mp8h at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-mqq7-wxx5-mp8h
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-20: Improper Input Validation
Affected Product Prestashop/ps checkout
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix GHSA-mqq7-wxx5-mp8h

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

prestashop/ps_checkout fixed: 5.3.0 
Upgrade prestashop/ps_checkout to 5.3.0
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 prestashop/ps_checkout

How to Check if You Are Affected

To determine whether your application is affected by GHSA-mqq7-wxx5-mp8h, inspect your project dependencies for Prestashop/ps checkout:

inspect dependencies for prestashop/ps_checkout

Analyze the terminal output to locate any version of Prestashop/ps checkout in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 5.3.0), 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Prestashop/ps checkout, 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

### Impact Unvalidated parameter can lead to some unauthorized method invocation with very little possibilities. ### Patches The problem has been patched in versions - v5.3.0 for PrestaShop 1.7 (build number: 7.5.3.0) - v5.3.0 for PrestaShop 8 (build number: 8.5.3.0) - v5.3.0 for PrestaShop 9 (build number: 9.5.3.0) Read the [Versioning policy](https://github.com/PrestaShopCorp/ps_checkout/wiki/Versioning) to learn more about the build numbers. ### Credits PrestaShop thanks [PATICEO](https://www.paticeo.com/) for reporting the issue.

GHSA-mqq7-wxx5-mp8h Affected Prestashop/ps checkout Versions

1 component(s)
Fixed Versions:
5.3.0
Product / Package Ecosystem Affected Versions Fixed Version
prestashop/ps_checkout
 Packagist
< 5.3.0
5.3.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/PrestaShopCorp/ps_checkout/security/advisories/GHSA-mqq7-wxx5-mp8h
Prestashop/ps checkout Source Repository REPOSITORY
https://github.com/PrestaShopCorp/ps_checkout
Prestashop/ps checkout Release RELEASE
https://github.com/PrestaShopCorp/ps_checkout/releases/tag/v5.3.0

Frequently Asked Questions

What is GHSA-mqq7-wxx5-mp8h?
GHSA-mqq7-wxx5-mp8h is a security vulnerability in Prestashop/ps checkout involving ps_checkout allows unauthorized method invocation through unvalidated parameter under CWE-20: Improper Input Validation.
Which Prestashop/ps checkout versions are affected?
Affected versions include releases prior to 5.3.0 across affected packages: prestashop/ps_checkout.
What version fixes GHSA-mqq7-wxx5-mp8h?
Upgrading to 5.3.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is prestashop/ps_checkout affected?
Yes, prestashop/ps_checkout is affected in releases prior to 5.3.0. Upgrade your dependency to 5.3.0 or later.
What CWE is associated with GHSA-mqq7-wxx5-mp8h?
GHSA-mqq7-wxx5-mp8h is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Packagist dependencies for GHSA-mqq7-wxx5-mp8h?
Run the dependency tree command: 'inspect dependencies for prestashop/ps_checkout'. 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-mqq7-wxx5-mp8h",
  "modified" : "2026-04-30T20:59:28Z",
  "published" : "2026-04-30T20:59:28Z",
  "aliases" : [ ],
  "summary" : "ps_checkout allows unauthorized method invocation through unvalidated parameter",
  "details" : "### Impact\n\nUnvalidated parameter can lead to some unauthorized method invocation with very little possibilities.\n\n### Patches\n\nThe problem has been patched in versions\n\n- v5.3.0 for PrestaShop 1.7 (build number: 7.5.3.0)\n- v5.3.0 for PrestaShop 8 (build number: 8.5.3.0)\n- v5.3.0 for PrestaShop 9 (build number: 9.5.3.0)\n\nRead the [Versioning policy](https://github.com/PrestaShopCorp/ps_checkout/wiki/Versioning) to learn more about the build numbers.\n\n### Credits\n\nPrestaShop thanks [PATICEO](https://www.paticeo.com/) for reporting the issue.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/ps_checkout"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShopCorp/ps_checkout/security/advisories/GHSA-mqq7-wxx5-mp8h"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PrestaShopCorp/ps_checkout"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShopCorp/ps_checkout/releases/tag/v5.3.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-30T20:59:28Z",
    "nvd_published_at" : null
  }
}