CVE-2026-0483
Stored Cross-Site Scripting (XSS) vulnerability in LiveHelperChat
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jan 28, 2026
- Updated
- Jan 28, 2026
- Reserved
- Dec 9, 2025
Description
Stored Cross-Site Scripting (XSS) vulnerability in the PDF file upload functionality of Live Helper Chat, versions prior to 4.72. An attacker can upload a malicious PDF file containing an XSS payload, which will be executed in the user's context when they download and open the file via the link generated by the application. The vulnerability allows arbitrary JavaScript code to be executed in the user's local context.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | INCIBE |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
LiveHelperChatLiveHelperChat |
|
References
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