CVE-2024-34716: Prestashop/prestashop Cross-Site Scripting Vulnerability

CRITICAL
Advisory Identifier: GHSA-45vm-3j38-7p78
Share
CVSS 9.6
CWE-79
Published
Advisory Summary

CVE-2024-34716 is a CRITICAL (CVSS 9.6) 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 via customer contact form in fo, through file upload. Remediation is available by upgrading affected packages to version 8.1.6.

CVE-2024-34716 at a Glance

CVE Identifier CVE-2024-34716
GHSA Identifier GHSA-45vm-3j38-7p78
Severity CRITICAL
CVSS v3.1 Base Score 9.6
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: 9.6

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:H/I:H/A:H).

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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2024-34716

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: 8.1.6 
Upgrade prestashop/prestashop to 8.1.6
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-2024-34716, 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 8.1.6), 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

### Impact Only PrestaShops with customer-thread feature flag enabled are impacted, starting from PrestaShop 8.1.0. The impact is substantial, when the customer thread feature flag is enabled, through the front-office contact form, a hacker can upload a malicious file containing an XSS that will be executed when an admin opens the attached file in back office. Consequence: the script injected can access the session and the security token, which allows it to perform any authenticated action in the scope of the administrator's right. ### Patches This vulnerability is patched in 8.1.6. ### Workarounds As long as you have not upgraded to 8.1.6, a simple workaround is to disable the customer-thread feature-flag. Thank you to Ayoub AIT ELMOKHTAR, who discovered this vulnerability and share it with the PrestaShop team.

CVE-2024-34716 Affected Prestashop/prestashop Versions

1 component(s)
Fixed Versions:
8.1.6
Product / Package Ecosystem Affected Versions Fixed Version
prestashop/prestashop
 Packagist
≥ 8.1.0
< 8.1.6
8.1.6

References

GitHub Advisory / Wiki ADVISORY
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-45vm-3j38-7p78
NVD — CVE-2024-34716 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-34716
Security Fix Commit FIX COMMIT
https://github.com/PrestaShop/PrestaShop/commit/a248898655e56cbcc6c308a5f1c8752231624bae
Prestashop/prestashop Source Repository REPOSITORY
https://github.com/PrestaShop/PrestaShop
Prestashop/prestashop Release RELEASE
https://github.com/PrestaShop/PrestaShop/releases/tag/8.1.6

Frequently Asked Questions

What is CVE-2024-34716?
CVE-2024-34716 is a security vulnerability in Prestashop/prestashop involving PrestaShop cross-site scripting via customer contact form in FO, through file upload 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 8.1.6 across affected packages: prestashop/prestashop.
What version fixes CVE-2024-34716?
Upgrading to 8.1.6 (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 8.1.6. Upgrade your dependency to 8.1.6 or later.
What is the CVSS score of CVE-2024-34716?
CVE-2024-34716 has a CVSS v3.1 base score of 9.6 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2024-34716?
CVE-2024-34716 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-2024-34716?
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-45vm-3j38-7p78",
  "modified" : "2024-05-14T20:17:12Z",
  "published" : "2024-05-14T20:17:12Z",
  "aliases" : [ "CVE-2024-34716" ],
  "summary" : "PrestaShop cross-site scripting via customer contact form in FO, through file upload",
  "details" : "### Impact\nOnly PrestaShops with customer-thread feature flag enabled are impacted, starting from PrestaShop 8.1.0.\n\nThe impact is substantial, when the customer thread feature flag is enabled, through the front-office contact form, a hacker can upload a malicious file containing an XSS that will be executed when an admin opens the attached file in back office.\n\nConsequence: the script injected can access the session and the security token, which allows it to perform any authenticated action in the scope of the administrator's right.\n\n### Patches\nThis vulnerability is patched in 8.1.6.\n\n### Workarounds\nAs long as you have not upgraded to 8.1.6, a simple workaround is to disable the customer-thread feature-flag.\n\nThank you to Ayoub AIT ELMOKHTAR, who discovered this vulnerability and share it with the PrestaShop team.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/prestashop"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.1.0"
      }, {
        "fixed" : "8.1.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-45vm-3j38-7p78"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-34716"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/commit/a248898655e56cbcc6c308a5f1c8752231624bae"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PrestaShop/PrestaShop"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/releases/tag/8.1.6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T20:17:12Z",
    "nvd_published_at" : "2024-05-14T16:17:28Z"
  }
}