Vulnerabilities in pkg:maven/org.zkoss.zk/zk

PACKAGE
Advisory Identifier: GHSA-6278-2q4m-cmf3
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Advisory Summary

CVE-2022-36537 is a HIGH (CVSS 7.5) zk framework vulnerable to malicious vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Zk libraries in the Maven ecosystem. The issue involves zk framework vulnerable to malicious post. Remediation is available by upgrading affected packages to version 8.6.4.2, 9.0.1.3, 9.5.1.4, 9.6.0.2, 9.6.2.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.zkoss.zk/zk

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.zkoss.zk/zk. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-6278-2q4m-cmf3 CVE-2022-36537 HIGH ZK Framework vulnerable to malicious POST

CVE-2022-36537 at a Glance

CVE Identifier CVE-2022-36537
GHSA Identifier GHSA-6278-2q4m-cmf3
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Zk
Package Ecosystem Maven
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:N/UI:N/S:U/C:H/I:N/A:N/E:H).

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

How to Fix CVE-2022-36537

To remediate this vulnerability, upgrade all affected Zk 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.zkoss.zk:zk fixed: 8.6.4.2 
<dependency>
    <groupId>org.zkoss.zk</groupId>
    <artifactId>zk</artifactId>
    <version>8.6.4.2</version>
</dependency>
org.zkoss.zk:zk fixed: 9.0.1.3 
<dependency>
    <groupId>org.zkoss.zk</groupId>
    <artifactId>zk</artifactId>
    <version>9.0.1.3</version>
</dependency>
org.zkoss.zk:zk fixed: 9.5.1.4 
<dependency>
    <groupId>org.zkoss.zk</groupId>
    <artifactId>zk</artifactId>
    <version>9.5.1.4</version>
</dependency>
org.zkoss.zk:zk fixed: 9.6.0.2 
<dependency>
    <groupId>org.zkoss.zk</groupId>
    <artifactId>zk</artifactId>
    <version>9.6.0.2</version>
</dependency>
org.zkoss.zk:zk fixed: 9.6.2 
<dependency>
    <groupId>org.zkoss.zk</groupId>
    <artifactId>zk</artifactId>
    <version>9.6.2</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.zkoss.zk

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2022-36537, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.zkoss.zk

Analyze the terminal output to locate any version of Zk in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.6.4.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.zkoss.zk 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-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Zk, 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

ZK Framework version 9.6.1, 9.6.0.1, 9.5.1.3, 9.0.1.2 and 8.6.4.1 allows attackers to access sensitive information via a crafted POST request sent to the component AuUploader.

CVE-2022-36537 Affected Zk Versions

5 component(s)
Fixed Versions:
8.6.4.29.0.1.39.5.1.49.6.0.29.6.2
Product / Package Ecosystem Affected Versions Fixed Version
org.zkoss.zk:zk
maven/org.zkoss.zk/zk
Maven
< 8.6.4.2
8.6.4.2
org.zkoss.zk:zk
maven/org.zkoss.zk/zk
Maven
≥ 9.0.0.0
< 9.0.1.3
9.0.1.3
org.zkoss.zk:zk
maven/org.zkoss.zk/zk
Maven
≥ 9.5.0.0
< 9.5.1.4
9.5.1.4
org.zkoss.zk:zk
maven/org.zkoss.zk/zk
Maven
≥ 9.6.0.0
< 9.6.0.2
9.6.0.2
org.zkoss.zk:zk
maven/org.zkoss.zk/zk
Maven
≥ 9.6.1
< 9.6.2
9.6.2

References

NVD — CVE-2022-36537 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-36537
Security Fix Commit FIX COMMIT
https://github.com/zkoss/zk/commit/92a29aa9b1daf1fd2d9d188cb6545f0441d54e84
Zk Source Repository REPOSITORY
https://github.com/zkoss/zk
Zk Security Information SECURITY
https://tracker.zkoss.org/browse/ZK-5150
Zk Security Information SECURITY
https://www.bleepingcomputer.com/news/security/cisa-warns-of-hackers-exploiting-zk-java-framework-rce-flaw
www.cisa.gov/known-exploited-vul... WEB
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-36537

Frequently Asked Questions

What is CVE-2022-36537?
CVE-2022-36537 is a security vulnerability in Zk involving ZK Framework vulnerable to malicious POST under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Zk versions are affected?
Affected versions include releases prior to 8.6.4.2, 9.0.1.3, 9.5.1.4, 9.6.0.2, 9.6.2 across affected packages: org.zkoss.zk:zk.
What version fixes CVE-2022-36537?
Upgrading to 8.6.4.2, 9.0.1.3, 9.5.1.4, 9.6.0.2, 9.6.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is zk affected?
Yes, org.zkoss.zk:zk is affected in releases prior to 8.6.4.2, 9.0.1.3, 9.5.1.4, 9.6.0.2, 9.6.2. Upgrade your dependency to 8.6.4.2, 9.0.1.3, 9.5.1.4, 9.6.0.2, 9.6.2 or later.
What is the CVSS score of CVE-2022-36537?
CVE-2022-36537 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H.
What CWE is associated with CVE-2022-36537?
CVE-2022-36537 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Maven dependencies for CVE-2022-36537?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.zkoss.zk'. 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-6278-2q4m-cmf3",
  "modified" : "2025-10-22T19:19:35Z",
  "published" : "2022-08-27T00:00:43Z",
  "aliases" : [ "CVE-2022-36537" ],
  "summary" : "ZK Framework vulnerable to malicious POST",
  "details" : "ZK Framework version 9.6.1, 9.6.0.1, 9.5.1.3, 9.0.1.2 and 8.6.4.1 allows attackers to access sensitive information via a crafted POST request sent to the component AuUploader.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.zkoss.zk:zk"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.6.4.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.zkoss.zk:zk"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0.0"
      }, {
        "fixed" : "9.0.1.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.zkoss.zk:zk"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.5.0.0"
      }, {
        "fixed" : "9.5.1.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.zkoss.zk:zk"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.6.0.0"
      }, {
        "fixed" : "9.6.0.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.zkoss.zk:zk"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.6.1"
      }, {
        "fixed" : "9.6.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-36537"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/zkoss/zk/commit/92a29aa9b1daf1fd2d9d188cb6545f0441d54e84"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/zkoss/zk"
  }, {
    "type" : "WEB",
    "url" : "https://tracker.zkoss.org/browse/ZK-5150"
  }, {
    "type" : "WEB",
    "url" : "https://www.bleepingcomputer.com/news/security/cisa-warns-of-hackers-exploiting-zk-java-framework-rce-flaw"
  }, {
    "type" : "WEB",
    "url" : "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-36537"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-09-16T18:37:18Z",
    "nvd_published_at" : "2022-08-26T20:15:00Z"
  }
}