4.0
MEDIUM CVSS 2.0
CVE-2026-90502
stilleshan ServerStatus Stats Generation main.cpp cross site scripting
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.

INFO

Published Date :

Sept. 13, 2026, 9:16 a.m.

Last Modified :

Sept. 13, 2026, 9:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-90502 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Stilleshan serverstatus
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 LOW [email protected]
CVSS 4.0 LOW [email protected]
Solution
Address cross-site scripting vulnerability by applying vendor patches or updates when available.
  • Apply vendor patches or updates.
  • Sanitize user-supplied input.
  • Implement output encoding.
  • Monitor for exploit activity.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-90502.

URL Resource
https://github.com/BlkSword/POC/blob/main/ServerStatus%20Stored%20.pdf
https://vuldb.com/cve/CVE-2026-90502
https://vuldb.com/submit/895248
https://vuldb.com/vuln/403090
https://vuldb.com/vuln/403090/cti
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-90502 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-90502 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-90502 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Sep. 13, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:P/A:N)
    Added CWE CWE-79
    Added CWE CWE-94
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/90xxx/CVE-2026-90502.json">CVE-2026-90502</a>
    Added Reference https://github.com/BlkSword/POC/blob/main/ServerStatus%20Stored%20.pdf
    Added Reference https://vuldb.com/cve/CVE-2026-90502
    Added Reference https://vuldb.com/submit/895248
    Added Reference https://vuldb.com/vuln/403090
    Added Reference https://vuldb.com/vuln/403090/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.