JavaScript execution via unescaped administrator name
Published Aug 19, 2025 · Updated Aug 20, 2025
Stored XSS in MoonShine before 3.12.4 allows remote authenticated users to execute JavaScript through a crafted administrator name. The Create Admin flow stores the Name value without neutralizing HTML, and the Articles view later renders it as markup, allowing an event handler to run. Creating an administrator requires high privileges; the payload then runs without further user interaction when the affected Articles view loads and can access browser-visible data in that session.
Summary
What happened
Stored XSS in MoonShine before 3.12.4 allows remote authenticated users to execute JavaScript through a crafted administrator name. The Create Admin flow stores the Name value without neutralizing HTML, and the Articles view later renders it as markup, allowing an event handler to run. Creating an administrator requires high privileges; the payload then runs without further user interaction when the affected Articles view loads and can access browser-visible data in that session.
The record
- CVE
- CVE-2025-51488
- Published
- Aug 19, 2025
- Updated
- Aug 20, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Aug 19, 2025CVE publishedPublication date reported by the CVE source.
- Aug 20, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- MoonShine Create Admin stored-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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