---
id: CVE-2015-20128
title: FooSun DotNetCMS 1.0 / 2.0 SQL Injection via City_ajax.aspx
summary: >-
  FooSun DotNetCMS 1.0 and 2.0 contains an SQL injection vulnerability that
  allows unauthenticated attackers to manipulate MSSQL queries through the
  CityId parameter. Attackers can send GET requests to /user/City_ajax.aspx with
  UNION SELEC…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-89
vendor: FooSun
product: DotNetCMS
affected:
  - DotNetCMS 1.0
  - DotNetCMS 2.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T20:31:26.220Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2015-20128'
references:
  - url: 'https://www.cnblogs.com/rebeyond/p/4951418.html'
    label: CNblogs Entry
  - url: >-
      https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/dotnetcms-sqli.yaml
    label: Nuclei Template
  - url: 'https://web.archive.org/web/20150203014116/http://www.foosun.net/'
    label: Archived Product Page
  - url: >-
      https://www.vulncheck.com/advisories/foosun-dotnetcms-1.0-2.0-sql-injection-via-city-ajax-aspx
    label: >-
      VulnCheck Advisory: FooSun DotNetCMS 1.0 / 2.0 SQL Injection via
      City_ajax.aspx
tags:
  - cve.org
ingestedAt: '2026-10-20T21:19:21.266Z'
---

## Overview

FooSun DotNetCMS 1.0 and 2.0 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate MSSQL queries through the CityId parameter. Attackers can send GET requests to /user/City_ajax.aspx with UNION SELECT payloads in CityId, concatenated unsanitized into the sys_City query, to extract database information. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.

## Affected

- `DotNetCMS 1.0`
- `DotNetCMS 2.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.