CVE-2020-9665: Magento/core Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-xc4p-j89c-p7x5
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2020-9665 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Magento/core libraries in the Packagist ecosystem. The issue involves magento stored cross-site scripting vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2020-9665 at a Glance

CVE Identifier CVE-2020-9665
GHSA Identifier GHSA-xc4p-j89c-p7x5
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 Magento/core
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-2020-9665

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

magento/core fixed: Latest secure release 
Upgrade magento/core to Latest secure release
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 magento/core

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-9665, inspect your project dependencies for Magento/core:

inspect dependencies for magento/core

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

Magento versions 1.14.4.5 and earlier, and 1.9.4.5 and earlier have a stored cross-site scripting vulnerability. Successful exploitation could lead to sensitive information disclosure. A patch SUPEE-11346 is available at [Magento Open Source Download Page](https://github.com/m-a-org/magento-patches) > Release Archive Tab > Magento Open Source Patches - 1.x Section

CVE-2020-9665 Affected Magento/core Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
magento/core
 Packagist
≤ 1.9.4.5

References

NVD — CVE-2020-9665 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9665
Magento/core Security Information SECURITY
https://helpx.adobe.com/security/products/magento/apsb20-41.html

Frequently Asked Questions

What is CVE-2020-9665?
CVE-2020-9665 is a security vulnerability in Magento/core involving Magento stored cross-site scripting vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Magento/core versions are affected?
Affected versions include releases prior to current release patches across affected packages: magento/core.
What version fixes CVE-2020-9665?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is magento/core affected?
Yes, magento/core is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2020-9665?
CVE-2020-9665 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-2020-9665?
CVE-2020-9665 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-2020-9665?
Run the dependency tree command: 'inspect dependencies for magento/core'. 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-xc4p-j89c-p7x5",
  "modified" : "2024-01-11T16:51:43Z",
  "published" : "2022-05-24T17:24:11Z",
  "aliases" : [ "CVE-2020-9665" ],
  "summary" : "Magento stored cross-site scripting vulnerability",
  "details" : "Magento versions 1.14.4.5 and earlier, and 1.9.4.5 and earlier have a stored cross-site scripting vulnerability. Successful exploitation could lead to sensitive information disclosure.\nA patch SUPEE-11346 is available at [Magento Open Source Download Page](https://github.com/m-a-org/magento-patches) > Release Archive Tab > Magento Open Source Patches - 1.x Section",
  "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" : "magento/core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.9.4.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-9665"
  }, {
    "type" : "WEB",
    "url" : "https://helpx.adobe.com/security/products/magento/apsb20-41.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-01-11T16:51:43Z",
    "nvd_published_at" : "2020-07-22T20:15:00Z"
  }
}