Remote XSS via unsanitized custom argument
Published Sep 13, 2026 · Updated Sep 13, 2026
Cross-site scripting in stilleshan ServerStatus 1.0 and 2.0 allows remote attackers to execute scripts by manipulating the custom argument. The Stats Generation path in server/src/main.cpp processes that argument without adequate output neutralization, allowing injected markup or script to reach the web interface. Exploitation requires network access to a ServerStatus instance and a victim browser that renders the affected response; the demonstrated impact is script execution in that browser context.
Summary
What happened
Cross-site scripting in stilleshan ServerStatus 1.0 and 2.0 allows remote attackers to execute scripts by manipulating the custom argument. The Stats Generation path in server/src/main.cpp processes that argument without adequate output neutralization, allowing injected markup or script to reach the web interface. Exploitation requires network access to a ServerStatus instance and a victim browser that renders the affected response; the demonstrated impact is script execution in that browser context.
The record
- CVE
- CVE-2026-90502
- Published
- Sep 13, 2026
- Updated
- Sep 13, 2026
- Vendor
- stilleshan
- Product
- ServerStatus
- Classifications
- T1189
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 13, 2026CVE publishedPublication date reported by the CVE source.
- Sep 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=1.0
- Affected versionversion=2.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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