Description
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.
Metrics
CVSS 3.1 8.2/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| FooSun | DotNetCMS | 1.0; 2.0 |
References
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/dotnetcms-sqli.yaml
- https://web.archive.org/web/20150203014116/http://www.foosun.net/
- https://www.cnblogs.com/rebeyond/p/4951418.html
- https://www.vulncheck.com/advisories/foosun-dotnetcms-1.0-2.0-sql-injection-via-city-ajax-aspx
Timeline
- Published
- Oct 20, 2026
- Last modified
- Oct 23, 2026
- NVD status
- Deferred