An XSS issue was discovered in Serenity Serene (and StartSharp) before 6.7.0.
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 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
An XSS issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. When users upload temporary files, some specific file endings are not allowed, but it is possible to upload .html or .htm files containing an XSS payload. The resulting link can be sent to an administrator user.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00785 56th percentileScored 2026-11-07
Fix Fixed Serenity.Net.Core (NuGet): 6.7.0Serenity.Net.Services (NuGet): 6.7.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | Serenity.Net.Core (NuGet) | before 6.7.0 | 6.7.0 | Patch available | GHSA-93h6-wx7r-mgfp |
| — | Serenity.Net.Services (NuGet) | before 6.7.0 | 6.7.0 | Patch available | GHSA-93h6-wx7r-mgfp |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- Serenity.Net.Core (NuGet) Vendor— Affected before 6.7.0 Fixed in 6.7.0 Patch available GHSA-93h6-wx7r-mgfp
- Serenity.Net.Services (NuGet) Vendor— Affected before 6.7.0 Fixed in 6.7.0 Patch available GHSA-93h6-wx7r-mgfp
Remediation
- Fix · GHSA-93h6-wx7r-mgfp Serenity.Net.Core (NuGet) Fixed in 6.7.0 Advisory →
- Fix · GHSA-93h6-wx7r-mgfp Serenity.Net.Services (NuGet) Fixed in 6.7.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-31285
- 2026-10-03 Alias added: GHSA-93h6-wx7r-mgfp
References
Other 5
- 20230529 SEC Consult SA-20230516-0 :: Multiple Vulnerabilities in Serenity and StartSharp Software
- http://packetstormsecurity.com/files/172648/Serenity-StartSharp-Software-File-Upload-XSS-User-Enumeration-Reusable-Tokens.html
- https://github.com/serenity-is/Serenity/commit/f54e9bfcf8ceb7f26f81a7362349bc1f63251d92
- https://github.com/serenity-is/serene/commit/6dce8162f4382badd429a9f0f1470acb64e8c4fd
- https://github.com/serenity-is/Serenity
More Serenity Serene vulnerabilities
- TI-2023-14967 An issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. CVSS 3.1MEDIUM 5.3
- TI-2023-14968 An issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. CVSS 3.1HIGH 7.8
Sources
- CVE-2023-31285 · CVE Program
- CVE-2023-31285 · NVD
- FIRST EPSS
- GHSA-93h6-wx7r-mgfp · GitHub Advisory Database · CC BY 4.0
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