CVE-2023-30838: Prestashop/prestashop :isCleanHTML Method Vulnerability

HIGH
Advisory Identifier: GHSA-fh7r-996q-gvcp
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CVSS 8.0
CWE-79
Published
Advisory Summary

CVE-2023-30838 is a HIGH (CVSS 8.0) :iscleanhtml method 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 :iscleanhtml method. Remediation is available by upgrading affected packages to version 8.0.4, 1.7.8.9.

CVE-2023-30838 at a Glance

CVE Identifier CVE-2023-30838
GHSA Identifier GHSA-fh7r-996q-gvcp
Severity HIGH
CVSS v3.1 Base Score 8.0
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: 8.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
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-2023-30838

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: 8.0.4 
Upgrade prestashop/prestashop to 8.0.4
prestashop/prestashop fixed: 1.7.8.9 
Upgrade prestashop/prestashop to 1.7.8.9
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-2023-30838, 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 8.0.4), 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 ValidateCore::isCleanHTML() method of Prestashop misses hijickable events which can lead to XSS injection, allowed by the presence of pre-setup @keyframes methods. This XSS which hijacks HTML attributes will be triggered without any interaction of the visitor/administrator which makes it as dangerous as a trivial XSS. Contrary to most XSS which target HTML attributes and which are triggered without user interaction (such as onload / onerror which suffer from a very limited scope), this one can hijack every HTML element, which increases the danger due to a complete HTML elements scope. ### Patches The patch will be on PS 8.0.4 and PS 1.7.8.9 ### References

CVE-2023-30838 Affected Prestashop/prestashop Versions

2 component(s)
Fixed Versions:
8.0.41.7.8.9
Product / Package Ecosystem Affected Versions Fixed Version
prestashop/prestashop
 Packagist
≥ 8.0.0
< 8.0.4
8.0.4
prestashop/prestashop
 Packagist
< 1.7.8.9
1.7.8.9

References

GitHub Advisory / Wiki ADVISORY
https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fh7r-996q-gvcp
NVD — CVE-2023-30838 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-30838
Security Fix Commit FIX COMMIT
https://github.com/PrestaShop/PrestaShop/commit/46408ae4b02f3b8b1bb6e9dc63af5bcd858abd9c
Security Fix Commit FIX COMMIT
https://github.com/PrestaShop/PrestaShop/commit/dc682192df0e4b0d656a8e645b29ca1b9dbe3693
Prestashop/prestashop Source Repository REPOSITORY
https://github.com/PrestaShop/PrestaShop
Prestashop/prestashop Release RELEASE
https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.8.9
Prestashop/prestashop Release RELEASE
https://github.com/PrestaShop/PrestaShop/releases/tag/8.0.4

Frequently Asked Questions

What is CVE-2023-30838?
CVE-2023-30838 is a security vulnerability in Prestashop/prestashop involving :isCleanHTML method 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 8.0.4, 1.7.8.9 across affected packages: prestashop/prestashop.
What version fixes CVE-2023-30838?
Upgrading to 8.0.4, 1.7.8.9 (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 8.0.4, 1.7.8.9. Upgrade your dependency to 8.0.4, 1.7.8.9 or later.
What is the CVSS score of CVE-2023-30838?
CVE-2023-30838 has a CVSS v3.1 base score of 8.0 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2023-30838?
CVE-2023-30838 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-2023-30838?
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-fh7r-996q-gvcp",
  "modified" : "2023-04-25T19:47:05Z",
  "published" : "2023-04-25T19:47:05Z",
  "aliases" : [ "CVE-2023-30838" ],
  "summary" : "Possible XSS injection through Validate::isCleanHTML method",
  "details" : "### Impact\nValidateCore::isCleanHTML() method of Prestashop misses hijickable events which can lead to XSS injection, allowed by the presence of pre-setup @keyframes methods.\n\nThis XSS which hijacks HTML attributes will be triggered without any interaction of the visitor/administrator which makes it as dangerous as a trivial XSS.\n\nContrary to most XSS which target HTML attributes and which are triggered without user interaction (such as onload / onerror which suffer from a very limited scope), this one can hijack every HTML element, which increases the danger due to a complete HTML elements scope.\n\n### Patches\nThe patch will be on PS 8.0.4 and PS 1.7.8.9\n\n### References\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/prestashop"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.0.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/prestashop"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.8.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fh7r-996q-gvcp"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-30838"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/commit/46408ae4b02f3b8b1bb6e9dc63af5bcd858abd9c"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/commit/dc682192df0e4b0d656a8e645b29ca1b9dbe3693"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PrestaShop/PrestaShop"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.8.9"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/PrestaShop/releases/tag/8.0.4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-04-25T19:47:05Z",
    "nvd_published_at" : "2023-04-25T19:15:11Z"
  }
}