CVE-2021-32731: Xwiki platform web The Reset Password Form Reveal Vulnerability

MODERATE
Advisory Identifier: GHSA-h4m4-pgp4-whgm
Share
CVSS 5.3
CWE-668 CWE-200
Published
Advisory Summary

CVE-2021-32731 is a MODERATE (CVSS 5.3) the reset password form reveal vulnerability (CWE-668: Exposure of Resource to Wrong Sphere) affecting Xwiki platform web libraries in the Maven ecosystem. The issue involves the reset password form reveal users email address. Remediation is available by upgrading affected packages to version 13.2.

CVE-2021-32731 at a Glance

CVE Identifier CVE-2021-32731
GHSA Identifier GHSA-h4m4-pgp4-whgm
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-668: Exposure of Resource to Wrong Sphere
Affected Product Xwiki platform web
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L/I:N/A:N).

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 Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2021-32731

To remediate this vulnerability, upgrade all affected Xwiki platform web 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.xwiki.platform:xwiki-platform-web fixed: 13.2 
<dependency>
    <groupId>org.xwiki.platform</groupId>
    <artifactId>xwiki-platform-web</artifactId>
    <version>13.2</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.xwiki.platform

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2021-32731, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.xwiki.platform

Analyze the terminal output to locate any version of Xwiki platform web in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 13.2), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.xwiki.platform 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-668: Exposure of Resource to Wrong Sphere, where the product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource. In Xwiki platform web, 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

### Impact The reset password form reveals the email address of users just by giving their username. ### Patches The problem has been patched on XWiki 13.2RC1. ### Workarounds It's possible to manually modify the `resetpasswordinline.vm` to perform the changes made in https://github.com/xwiki/xwiki-platform/commit/0cf716250b3645a5974c80d8336dcdf885749dff#diff-14a3132e3986b1f5606dd13d9d8a8bb8634bec9932123c5e49e9604cfd850fc2 ### References https://jira.xwiki.org/browse/XWIKI-18400 ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki](https://jira.xiwki.org) * Email us at [Security ML](mailto:security@xwiki.org)

CVE-2021-32731 Affected Xwiki platform web Versions

1 component(s)
Fixed Versions:
13.2
Product / Package Ecosystem Affected Versions Fixed Version
org.xwiki.platform:xwiki-platform-web
maven/org.xwiki.platform/xwiki-platform-web
Maven
≥ 13.1
< 13.2
13.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h4m4-pgp4-whgm
NVD — CVE-2021-32731 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32731
Security Fix Commit FIX COMMIT
https://github.com/xwiki/xwiki-platform/commit/0cf716250b3645a5974c80d8336dcdf885749dff#diff-14a3132e3986b1f5606dd13d9d8a8bb8634bec9932123c5e49e9604cfd850fc2
Xwiki platform web Source Repository REPOSITORY
https://github.com/xwiki/xwiki-platform
jira.xwiki.org/browse/xwiki-18400 WEB
https://jira.xwiki.org/browse/XWIKI-18400

Frequently Asked Questions

What is CVE-2021-32731?
CVE-2021-32731 is a security vulnerability in Xwiki platform web involving The reset password form reveal users email address under CWE-668: Exposure of Resource to Wrong Sphere.
Which Xwiki platform web versions are affected?
Affected versions include releases prior to 13.2 across affected packages: org.xwiki.platform:xwiki-platform-web.
What version fixes CVE-2021-32731?
Upgrading to 13.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is xwiki-platform-web affected?
Yes, org.xwiki.platform:xwiki-platform-web is affected in releases prior to 13.2. Upgrade your dependency to 13.2 or later.
What is the CVSS score of CVE-2021-32731?
CVE-2021-32731 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2021-32731?
CVE-2021-32731 is classified under CWE-668: Exposure of Resource to Wrong Sphere (The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.).
How can I check Maven dependencies for CVE-2021-32731?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.xwiki.platform'. 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-h4m4-pgp4-whgm",
  "modified" : "2022-10-25T20:25:48Z",
  "published" : "2021-07-02T19:19:04Z",
  "aliases" : [ "CVE-2021-32731" ],
  "summary" : "The reset password form reveal users email address",
  "details" : "### Impact\nThe reset password form reveals the email address of users just by giving their username.\n\n### Patches\nThe problem has been patched on XWiki 13.2RC1.\n\n### Workarounds\nIt's possible to manually modify the `resetpasswordinline.vm` to perform the changes made in https://github.com/xwiki/xwiki-platform/commit/0cf716250b3645a5974c80d8336dcdf885749dff#diff-14a3132e3986b1f5606dd13d9d8a8bb8634bec9932123c5e49e9604cfd850fc2\n\n### References\nhttps://jira.xwiki.org/browse/XWIKI-18400\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki](https://jira.xiwki.org)\n* Email us at [Security ML](mailto:security@xwiki.org)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.xwiki.platform:xwiki-platform-web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "13.1"
      }, {
        "fixed" : "13.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h4m4-pgp4-whgm"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-32731"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/xwiki/xwiki-platform/commit/0cf716250b3645a5974c80d8336dcdf885749dff#diff-14a3132e3986b1f5606dd13d9d8a8bb8634bec9932123c5e49e9604cfd850fc2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/xwiki/xwiki-platform"
  }, {
    "type" : "WEB",
    "url" : "https://jira.xwiki.org/browse/XWIKI-18400"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-668" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-07-02T16:39:50Z",
    "nvd_published_at" : "2021-07-01T19:15:00Z"
  }
}