Cross-site scripting in ServiceStack Framework
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
ServiceStack ServiceStack Framework 4.5.14 is affected by: Cross Site Scripting (XSS). The impact is: JavaScrpit is reflected in the server response, hence executed by the browser. The component is: the query used in the GET request is prone. The attack vector is: Since there is no server-side validation and If Browser encoding is bypassed, the victim is affected when opening a crafted URL. The fixed version is: 5.2.0.
Why it matters now
EPSS 0.00889 59th percentileScored 2026-11-07
Fix Fixed ServiceStack (NuGet): 5.2.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ServiceStack | ServiceStack Framework | 4.5.14 [fixed: 5.2.0] | — | No fix listed | CNA |
| — | ServiceStack (NuGet) | 4.5.14 to before 5.2.0 | 5.2.0 | Patch available | GHSA-vcfc-9wcp-j623 |
- ServiceStack Framework VendorServiceStack Affected 4.5.14 [fixed: 5.2.0] Fixed in — No fix listed CNA
- ServiceStack (NuGet) Vendor— Affected 4.5.14 to before 5.2.0 Fixed in 5.2.0 Patch available GHSA-vcfc-9wcp-j623
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:servicestack:servicestack:4.5.14:*:*:*:*:*:*:* | 4.5.14 | Vulnerable | ServiceStack |
- cpe:2.3:a:servicestack:servicestack:4.5.14:*:*:*:*:*:*:* Versions 4.5.14 Vulnerable ·ServiceStack
Remediation
- Fix · GHSA-vcfc-9wcp-j623 ServiceStack (NuGet) Fixed in 5.2.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1010199
- 2026-10-03 Alias added: GHSA-vcfc-9wcp-j623
References
More Servicestack vulnerabilities
- TI-2025-05846 Path traversal in ServiceStack CVSS 3.1HIGH 8.1
- TI-2020-17068 ServiceStack before 5.9.2 mishandles JWT signature verification unless an application has… CVSS 3.1MEDIUM 5.3
- TI-2025-05845 Improper input validation in ServiceStack CVSS 3.1MEDIUM 5.9
Sources
- CVE-2019-1010199 · CVE Program
- CVE-2019-1010199 · NVD
- FIRST EPSS
- GHSA-vcfc-9wcp-j623 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences