CVE-2025-51396
BaseFortify
Publication date: 2025-07-21
Last updated on: 2025-08-07
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| livehelperchat | live_helper_chat | to 4.61 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a stored Cross-Site Scripting (XSS) flaw in Live Helper Chat versions up to 4.61. It occurs because the Telegram Bot Username parameter does not properly sanitize input, allowing attackers to inject malicious JavaScript code. This code is stored persistently and executes whenever an administrator or privileged user views or edits the Telegram Bot Username in the settings, potentially leading to unauthorized script execution within the application. [1]
How can this vulnerability impact me? :
The impact of this vulnerability is that an attacker can execute arbitrary web scripts in the context of the Live Helper Chat application. This can lead to unauthorized actions such as stealing session tokens, performing actions on behalf of administrators, or injecting malicious content. Essentially, it compromises the security and integrity of the application for users with higher privileges. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by logging into Live Helper Chat as an operator user, navigating to Settings > Live Help Configuration > Telegram Bot, and checking the Telegram Bot Username field for any suspicious or crafted payloads such as `"><img src=\"x\" onerror=\"prompt(1);\">`. There are no specific network commands provided, but manual inspection of this field in the application interface is the primary detection method. [1]
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability immediately, update Live Helper Chat to version 4.61 or later where the issue has been patched. Additionally, avoid entering untrusted input into the Telegram Bot Username parameter and review existing entries for malicious scripts. Applying the official security fixes from LiveHelperChat is recommended. [1]