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Yoast SEO 16.7-17.2 - Information Disclosure

ID: CVE-2021-25118

Severity: medium

Author: DhiyaneshDK

Tags: cve2021,cve,wpscan,wordpress,wp-plugin,fpd,wp,yoast

Description

Section titled “Description”

Yoast SEO plugin 16.7 to 17.2 is susceptible to information disclosure, The plugin discloses the full internal path of featured images in posts via the wp/v2/posts REST endpoints, which can help an attacker identify other vulnerabilities or help during the exploitation of other identified vulnerabilities.

YAML Source

Section titled “YAML Source”
id: CVE-2021-25118


info:
  name: Yoast SEO 16.7-17.2 - Information Disclosure
  author: DhiyaneshDK
  severity: medium
  description: Yoast SEO plugin 16.7 to 17.2 is susceptible to information disclosure, The plugin discloses the full internal path of featured images in posts via the wp/v2/posts REST endpoints, which can help an attacker identify other vulnerabilities or help during the exploitation of other identified vulnerabilities.
  impact: |
    An attacker can exploit this vulnerability to gain sensitive information from the target system.
  remediation: Fixed in version 17.3.
  reference:
    - https://wpscan.com/vulnerability/2c3f9038-632d-40ef-a099-6ea202efb550
    - https://plugins.trac.wordpress.org/changeset/2608691
    - https://nvd.nist.gov/vuln/detail/CVE-2021-25118
    - https://github.com/20142995/sectool
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2021-25118
    cwe-id: CWE-200
    epss-score: 0.00173
    epss-percentile: 0.5348
    cpe: cpe:2.3:a:yoast:yoast_seo:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: yoast
    product: yoast_seo
    framework: wordpress
  tags: cve2021,cve,wpscan,wordpress,wp-plugin,fpd,wp,yoast


http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-json/wp/v2/posts?per_page=1"


    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "application/json"


      - type: regex
        regex:
          - '"path":"(.*)/wp-content\\(.*)","size'


      - type: status
        status:
          - 200


    extractors:
      - type: regex
        group: 1
        regex:
          - '"path":"(.*)/wp-content\\(.*)","size'
        part: body
# digest: 4b0a00483046022100cac2a147612a7e00bf19566aa865efef63776826f00ab9eda35603b5ccaf358d022100fc81df96868c3306af04b63c5c9b23a42c4e6e72639bfc8951dc62c636723f10:922c64590222798bb761d5b6d8e72950

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-2021-25118.yaml"

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