CVE-2021-3536: Wildfly parent Cross-Site Scripting Vulnerability

LOW
Advisory Identifier: GHSA-v2wx-jj66-2hp7
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CVSS 3.8
CWE-79
Published
Advisory Summary

CVE-2021-3536 is a LOW (CVSS 3.8) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Wildfly parent libraries in the Maven ecosystem. The issue involves cross-site scripting in wildfly. Remediation is available by upgrading affected packages to version 23.0.2.Final.

CVE-2021-3536 at a Glance

CVE Identifier CVE-2021-3536
GHSA Identifier GHSA-v2wx-jj66-2hp7
Severity LOW
CVSS v3.1 Base Score 3.8
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Wildfly parent
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.8

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:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2021-3536

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

org.wildfly:wildfly-parent fixed: 23.0.2.Final 
<dependency>
    <groupId>org.wildfly</groupId>
    <artifactId>wildfly-parent</artifactId>
    <version>23.0.2.Final</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.wildfly

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-3536, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.wildfly

Analyze the terminal output to locate any version of Wildfly parent in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 23.0.2.Final), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.wildfly command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

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 Wildfly parent, 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

A flaw was found in Wildfly in versions before 23.0.2.Final while creating a new role in domain mode via the admin console, it is possible to add a payload in the name field, leading to XSS. This affects Confidentiality and Integrity.

CVE-2021-3536 Affected Wildfly parent Versions

1 component(s)
Fixed Versions:
23.0.2.Final
Product / Package Ecosystem Affected Versions Fixed Version
org.wildfly:wildfly-parent
maven/org.wildfly/wildfly-parent
Maven
< 23.0.2.Final
23.0.2.Final

References

NVD — CVE-2021-3536 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3536
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1948001

Frequently Asked Questions

What is CVE-2021-3536?
CVE-2021-3536 is a security vulnerability in Wildfly parent involving Cross-site Scripting in Wildfly under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Wildfly parent versions are affected?
Affected versions include releases prior to 23.0.2.Final across affected packages: org.wildfly:wildfly-parent.
What version fixes CVE-2021-3536?
Upgrading to 23.0.2.Final (or the latest patched release for your respective branch) resolves the vulnerability.
Is wildfly-parent affected?
Yes, org.wildfly:wildfly-parent is affected in releases prior to 23.0.2.Final. Upgrade your dependency to 23.0.2.Final or later.
What is the CVSS score of CVE-2021-3536?
CVE-2021-3536 has a CVSS v3.1 base score of 3.8 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2021-3536?
CVE-2021-3536 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 Maven dependencies for CVE-2021-3536?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.wildfly'. 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-v2wx-jj66-2hp7",
  "modified" : "2021-05-21T17:58:38Z",
  "published" : "2021-05-25T18:45:05Z",
  "aliases" : [ "CVE-2021-3536" ],
  "summary" : "Cross-site Scripting in Wildfly",
  "details" : "A flaw was found in Wildfly in versions before 23.0.2.Final while creating a new role in domain mode via the admin console, it is possible to add a payload in the name field, leading to XSS. This affects Confidentiality and Integrity.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.wildfly:wildfly-parent"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "23.0.2.Final"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 23.0.1.Final"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-3536"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1948001"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-21T17:58:38Z",
    "nvd_published_at" : "2021-05-20T13:15:00Z"
  }
}