CVE-2019-11876: Prestashop/prestashop Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-6grv-hw8g-4gfm
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2019-11876 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Prestashop/prestashop libraries in the Packagist ecosystem. The issue involves prestashop cross-site scripting vulnerability. Remediation is available by upgrading affected packages to version 1.7.6.0.

CVE-2019-11876 at a Glance

CVE Identifier CVE-2019-11876
GHSA Identifier GHSA-6grv-hw8g-4gfm
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 Prestashop/prestashop
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:3.0/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-2019-11876

To remediate this vulnerability, upgrade all affected Prestashop/prestashop 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/prestashop fixed: 1.7.6.0 
Upgrade prestashop/prestashop to 1.7.6.0
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/prestashop

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-11876, inspect your project dependencies for Prestashop/prestashop:

inspect dependencies for prestashop/prestashop

Analyze the terminal output to locate any version of Prestashop/prestashop in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.6.0), 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 Prestashop/prestashop, 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

In PrestaShop 1.7.5.2, the `shop_country` parameter in the `install/index.php` installation `script/component` is affected by Reflected XSS. Exploitation by a malicious actor requires the user to follow the initial stages of the setup (accepting terms and conditions) before executing the malicious link.

CVE-2019-11876 Affected Prestashop/prestashop Versions

1 component(s)
Fixed Versions:
1.7.6.0
Product / Package Ecosystem Affected Versions Fixed Version
prestashop/prestashop
 Packagist
≥ 1.7.5.2
< 1.7.6.0
All 1 versions
1.7.5.2
1.7.6.0

References

NVD — CVE-2019-11876 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-11876
Prestashop/prestashop Source Repository REPOSITORY
https://github.com/PrestaShop/PrestaShop
www.logicallysecure.com/blog/xss-presta-xss... WEB
https://www.logicallysecure.com/blog/xss-presta-xss-drupal
www.prestashop.com/forums/forum/2-pres... WEB
https://www.prestashop.com/forums/forum/2-prestashop-news-and-releases

Frequently Asked Questions

What is CVE-2019-11876?
CVE-2019-11876 is a security vulnerability in Prestashop/prestashop involving PrestaShop Cross-site Scripting vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Prestashop/prestashop versions are affected?
Affected versions include releases prior to 1.7.6.0 across affected packages: prestashop/prestashop.
What version fixes CVE-2019-11876?
Upgrading to 1.7.6.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is prestashop/prestashop affected?
Yes, prestashop/prestashop is affected in releases prior to 1.7.6.0. Upgrade your dependency to 1.7.6.0 or later.
What is the CVSS score of CVE-2019-11876?
CVE-2019-11876 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2019-11876?
CVE-2019-11876 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-2019-11876?
Run the dependency tree command: 'inspect dependencies for prestashop/prestashop'. 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-6grv-hw8g-4gfm",
  "modified" : "2024-04-23T17:06:30Z",
  "published" : "2022-05-24T16:46:36Z",
  "aliases" : [ "CVE-2019-11876" ],
  "summary" : "PrestaShop Cross-site Scripting vulnerability",
  "details" : "In PrestaShop 1.7.5.2, the `shop_country` parameter in the `install/index.php` installation `script/component` is affected by Reflected XSS. Exploitation by a malicious actor requires the user to follow the initial stages of the setup (accepting terms and conditions) before executing the malicious link.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/prestashop"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.7.5.2"
      }, {
        "fixed" : "1.7.6.0"
      } ]
    } ],
    "versions" : [ "1.7.5.2" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-11876"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PrestaShop/PrestaShop"
  }, {
    "type" : "WEB",
    "url" : "https://www.logicallysecure.com/blog/xss-presta-xss-drupal"
  }, {
    "type" : "WEB",
    "url" : "https://www.prestashop.com/forums/forum/2-prestashop-news-and-releases"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-23T17:06:29Z",
    "nvd_published_at" : "2019-05-24T16:29:00Z"
  }
}