| Título | Scada-LTS 2.7.8.1 Cross Site Scripting (XSS) Stored |
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| Descripción | # Cross-Site Scripting (XSS) Stored endpoint `compound_events.shtm` parameter `name`
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## Summary
A Stored Cross-Site Scripting (XSS) vulnerability was identified in the `compound_events.shtm` endpoint of the _SCADA-LTS_ application. This vulnerability allows attackers to inject malicious scripts into the `name` parameter. The injected payload is stored on the server and executed automatically in the browser of any user who accesses the affected compound event entry, creating a persistent attack vector.
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## Details
**Vulnerable Endpoint:** `POST /compound_events.shtm`
**Parameter:** `name`
The application does not properly validate or sanitize input in the `name` field. As a result, an attacker can inject JavaScript code, which is stored in the system and later rendered in the application’s interface, causing automatic execution in the user's browser.
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## PoC
**Payload:**
`<img src=x onerror=alert('Compound-PoC-XSS')>`
### Steps to Reproduce:
1. Log in to the _SCADA-LTS_ application with an account that has permission to create or edit compound events.
2. Navigate to the **Compound Events** section and select **Add Compound Event** or edit an existing entry.
3. In the **Name** field, insert the payload above:
`<img src=x onerror=alert('Compound-PoC-XSS')>`
4. Complete any required fields and click **Save**.
![[Pasted image 20250724000222.png]]
5. The stored payload is executed immediately in the browser, confirming the Stored XSS vulnerability.
![[Pasted image 20250724000245.png]]
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## Impact
Stored XSS attacks can lead to severe consequences, including:
- **Session hijacking:** Stealing cookies or authentication tokens to impersonate users
- **Credential theft:** Capturing usernames and passwords through malicious scripts
- **Malware delivery:** Distributing harmful code to application users
- **Privilege escalation:** Compromising higher-privilege accounts via persistent scripts
- **Data manipulation or defacement:** Altering displayed content in the application
- **Reputation damage:** Eroding trust among system users and stakeholders |
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| Fuente | ⚠️ https://github.com/marcelomulder/CVE/blob/main/Scada-LTS/Stored%20XSS%20endpoint%20compound_events.shtm%20parameter%20name.md |
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| Usuario | marceloQz (UID 87549) |
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| Sumisión | 2025-08-09 08:18 (hace 11 meses) |
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| Moderación | 2025-08-20 12:52 (11 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 320768 [Scada-LTS hasta 2.7.8.1 compound_events.shtm Nombre secuencias de comandos en sitios cruzados] |
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| Puntos | 20 |
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