CVE-2020-29470: Opencart/opencart Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-87cv-57p8-j33x
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CVSS 4.8
CWE-79
Published
Advisory Summary

CVE-2020-29470 is a MODERATE (CVSS 4.8) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Opencart/opencart libraries in the Packagist ecosystem. The issue involves opencart cross-site scripting (xss) in the subject field of mail.. Remediation is available in the latest vendor maintenance releases.

CVE-2020-29470 at a Glance

CVE Identifier CVE-2020-29470
GHSA Identifier GHSA-87cv-57p8-j33x
Severity MODERATE
CVSS v3.1 Base Score 4.8
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Opencart/opencart
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.8

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
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-2020-29470

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

opencart/opencart fixed: Latest secure release 
Upgrade opencart/opencart 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 opencart/opencart

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-29470, inspect your project dependencies for Opencart/opencart:

inspect dependencies for opencart/opencart

Analyze the terminal output to locate any version of Opencart/opencart 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 Opencart/opencart, 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

OpenCart 3.0.3.6 is affected by cross-site scripting (XSS) in the Subject field of mail. This vulnerability can allow an attacker to inject the XSS payload in the Subject field of the mail and each time any user will open that mail of the website, the XSS triggers and the attacker can able to steal the cookie according to the crafted payload.

CVE-2020-29470 Affected Opencart/opencart Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
opencart/opencart
 Packagist
3.0.3.6
All 1 versions
3.0.3.6
None specified

References

NVD — CVE-2020-29470 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29470
www.exploit-db.com/exploits/49099 WEB
https://www.exploit-db.com/exploits/49099

Frequently Asked Questions

What is CVE-2020-29470?
CVE-2020-29470 is a security vulnerability in Opencart/opencart involving OpenCart Cross-site Scripting (XSS) in the Subject field of mail. under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Opencart/opencart versions are affected?
Affected versions include releases prior to current release patches across affected packages: opencart/opencart.
What version fixes CVE-2020-29470?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is opencart/opencart affected?
Yes, opencart/opencart 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-2020-29470?
CVE-2020-29470 has a CVSS v3.1 base score of 4.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2020-29470?
CVE-2020-29470 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-2020-29470?
Run the dependency tree command: 'inspect dependencies for opencart/opencart'. 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-87cv-57p8-j33x",
  "modified" : "2024-04-23T17:06:49Z",
  "published" : "2022-05-24T17:37:27Z",
  "aliases" : [ "CVE-2020-29470" ],
  "summary" : "OpenCart Cross-site Scripting (XSS) in the Subject field of mail.",
  "details" : "OpenCart 3.0.3.6 is affected by cross-site scripting (XSS) in the Subject field of mail. This vulnerability can allow an attacker to inject the XSS payload in the Subject field of the mail and each time any user will open that mail of the website, the XSS triggers and the attacker can able to steal the cookie according to the crafted payload.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "opencart/opencart"
    },
    "versions" : [ "3.0.3.6" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-29470"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/49099"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-23T17:06:49Z",
    "nvd_published_at" : "2020-12-29T17:15:00Z"
  }
}