GHSA-9j5w-2cqc-cwj9: Openmage/magento lts Cross-Site Scripting Vulnerability

HIGH
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CVSS 7.5
CWE-79
Published
Advisory Summary

GHSA-9j5w-2cqc-cwj9 is a HIGH (CVSS 7.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Openmage/magento lts libraries in the Packagist ecosystem. The issue involves magento lts vulnerable to stored xss via tinymce wysiwyg editor. Remediation is available by upgrading affected packages to version 20.2.0.

GHSA-9j5w-2cqc-cwj9 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-9j5w-2cqc-cwj9
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Openmage/magento lts
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

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

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

How to Fix GHSA-9j5w-2cqc-cwj9

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

openmage/magento-lts fixed: 20.2.0 
Upgrade openmage/magento-lts to 20.2.0
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 openmage/magento-lts

How to Check if You Are Affected

To determine whether your application is affected by GHSA-9j5w-2cqc-cwj9, inspect your project dependencies for Openmage/magento lts:

inspect dependencies for openmage/magento-lts

Analyze the terminal output to locate any version of Openmage/magento lts in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 20.2.0), 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 Openmage/magento lts, 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

From HackerOne report [#1948040](https://hackerone.com/reports/1948040) by Halit AKAYDIN (hltakydn) ### Impact _What kind of vulnerability is it? Who is impacted?_ The TinyMCE WYSIWYG editor fails to filter scripts when rendering the HTML in specially crafted HTML tags. ### Patches _Has the problem been patched? What versions should users upgrade to?_ This vulnerability was fixed in version 20.2.0 by upgrading TinyMCE to a recent version in https://github.com/OpenMage/magento-lts/pull/3220 ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ The WYSIWYG editor features could be disabled in the configuration. Possibly some WAF appliances would filter this attack. ### References _Are there any links users can visit to find out more?_ The attack is simply an exploit of the "onmouseover" attribute of an `img` element as described on [OWASP XSS Filter Evasion](https://cheatsheetseries.owasp.org/cheatsheets/XSS_Filter_Evasion_Cheat_Sheet.html)

GHSA-9j5w-2cqc-cwj9 Affected Openmage/magento lts Versions

1 component(s)
Fixed Versions:
20.2.0
Product / Package Ecosystem Affected Versions Fixed Version
openmage/magento-lts
 Packagist
< 20.2.0
20.2.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-9j5w-2cqc-cwj9
Openmage/magento lts Source Repository REPOSITORY
https://github.com/OpenMage/magento-lts/pull/3220
hackerone.com/reports/1948040 WEB
https://hackerone.com/reports/1948040
Openmage/magento lts Source Repository REPOSITORY
https://github.com/OpenMage/magento-lts
Openmage/magento lts Release RELEASE
https://github.com/OpenMage/magento-lts/releases/tag/v20.2.0

Frequently Asked Questions

What is GHSA-9j5w-2cqc-cwj9?
GHSA-9j5w-2cqc-cwj9 is a security vulnerability in Openmage/magento lts involving Magento LTS vulnerable to Stored XSS via TinyMCE WYSIWYG Editor under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Openmage/magento lts versions are affected?
Affected versions include releases prior to 20.2.0 across affected packages: openmage/magento-lts.
What version fixes GHSA-9j5w-2cqc-cwj9?
Upgrading to 20.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openmage/magento-lts affected?
Yes, openmage/magento-lts is affected in releases prior to 20.2.0. Upgrade your dependency to 20.2.0 or later.
What is the CVSS score of GHSA-9j5w-2cqc-cwj9?
GHSA-9j5w-2cqc-cwj9 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L.
What CWE is associated with GHSA-9j5w-2cqc-cwj9?
GHSA-9j5w-2cqc-cwj9 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 GHSA-9j5w-2cqc-cwj9?
Run the dependency tree command: 'inspect dependencies for openmage/magento-lts'. 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-9j5w-2cqc-cwj9",
  "modified" : "2023-12-08T15:15:14Z",
  "published" : "2023-12-08T15:15:14Z",
  "aliases" : [ ],
  "summary" : "Magento LTS vulnerable to Stored XSS via TinyMCE WYSIWYG Editor",
  "details" : "From HackerOne report [#1948040](https://hackerone.com/reports/1948040) by Halit AKAYDIN (hltakydn)\n\n### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nThe TinyMCE WYSIWYG editor fails to filter scripts when rendering the HTML in specially crafted HTML tags.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nThis vulnerability was fixed in version 20.2.0 by upgrading TinyMCE to a recent version in https://github.com/OpenMage/magento-lts/pull/3220\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nThe WYSIWYG editor features could be disabled in the configuration. Possibly some WAF appliances would filter this attack.\n\n### References\n_Are there any links users can visit to find out more?_\n\nThe attack is simply an exploit of the \"onmouseover\" attribute of an `img` element as described on [OWASP XSS Filter Evasion](https://cheatsheetseries.owasp.org/cheatsheets/XSS_Filter_Evasion_Cheat_Sheet.html)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "openmage/magento-lts"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "20.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-9j5w-2cqc-cwj9"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/pull/3220"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/1948040"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OpenMage/magento-lts"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OpenMage/magento-lts/releases/tag/v20.2.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-12-08T15:15:14Z",
    "nvd_published_at" : null
  }
}