CVE-2025-51398
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?
CVE-2025-51398 is a stored cross-site scripting (XSS) vulnerability in the Facebook integration feature of Live Helper Chat versions up to 4.61. It allows an attacker to inject malicious JavaScript code into the Facebook page Name field. This malicious code is stored by the application and executed in the browsers of privileged users (such as operators or administrators) when they view or edit the Facebook page integration settings, potentially leading to arbitrary script execution. [1]
How can this vulnerability impact me? :
This vulnerability can impact you by allowing attackers to execute arbitrary scripts in the browsers of privileged users who access the Facebook page integration settings. This can lead to unauthorized actions such as stealing session tokens, performing actions on behalf of the user, or other malicious activities that compromise the security and integrity of the application and its users. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
This vulnerability can be detected by attempting to inject a test XSS payload into the Facebook page integration Name field in LiveHelperChat (version ≤ 4.61). For example, injecting the payload `"><img src=\"x\" onerror=\"prompt(1);\">` into the Name field and then observing if a JavaScript prompt appears when an operator or administrator views or edits the Facebook integration settings. There are no specific network commands provided, but manual testing of the input field for stored XSS is recommended. [1]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to upgrade LiveHelperChat to version 4.61 or later, where the vulnerability has been patched by properly escaping the Facebook page Name field and other affected inputs. Additionally, applying the database update script `doc/update_db/update_329.sql` as part of the update process is necessary. Until the update is applied, restrict access to the Facebook integration settings to trusted users only to minimize risk. [1, 2]