| Title | Scada-LTS 2.7.8.1 Cross Site Scripting (XSS) Stored |
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| Description | Cross-Site Scripting (XSS) Stored endpoint `data_source_edit.shtm` parameter `name`
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## Summary
A Stored Cross-Site Scripting (XSS) vulnerability was identified in the `data_source_edit.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 data source entry, creating a persistent attack vector.
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## Details
**Vulnerable Endpoint:** `POST /data_source_edit.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, leading to automatic execution in the user's browser.
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## PoC
**Payload:**
`"><img src=x onerror=alert('XSS-PoC3')>`
### Steps to Reproduce:
1. Log in to the _SCADA-LTS_ application with an account that has permission to create or edit data sources.
2. Navigate to the **Data Sources** section and select **Add Data Source** or edit an existing entry.
3. In the **Name** field, insert the payload above:
`"><img src=x onerror=alert('XSS-PoC3')>`
4. Fill in any other required fields and click **Save**.
![[Pasted image 20250722175722.png]]
5. The stored payload is executed immediately in the browser, confirming the Stored XSS vulnerability.
![[Pasted image 20250722175822.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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| Source | ⚠️ https://github.com/marcelomulder/CVE/blob/main/Scada-LTS/Cross-Site_Scripting_(XSS)_Stored_endpoint_data_source_edit.shtm_parameter_name.md |
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| User | marceloQz (UID 87549) |
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| Submission | 07/26/2025 15:44 (9 months ago) |
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| Moderation | 08/08/2025 10:53 (13 days later) |
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| Status | Accepted |
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| VulDB entry | 319239 [Scada-LTS up to 2.7.8.1 Virtual Data Source Property /data_source_edit.shtm Name cross site scripting] |
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| Points | 20 |
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