# CVE-2026-90502

## Summary

- **CVE ID:** CVE-2026-90502
- **Severity:** MEDIUM
- **CVSS Score:** 5.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P)
- **CWE:** CWE-79, CWE-94
- **Published:** Sep 13, 2026
- **Last Modified:** Sep 14, 2026

## Description

A vulnerability was detected in stilleshan ServerStatus 1.0/2.0. Impacted is an unknown function of the file server/src/main.cpp of the component Stats Generation. Performing a manipulation of the argument custom results in cross site scripting. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

## Affected Products

- stilleshan — ServerStatus (1.0)
- stilleshan — ServerStatus (2.0)

## References

- [CNA](https://vuldb.com/vuln/403090)
- [CNA](https://vuldb.com/vuln/403090/cti)
- [CNA](https://vuldb.com/cve/CVE-2026-90502)
- [CNA](https://vuldb.com/submit/895248)
- [CNA](https://github.com/BlkSword/POC/blob/main/ServerStatus%20Stored%20.pdf)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.19%
- **EPSS Percentile:** 9.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._