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NVD Vulnerability Details :

CVE-2026-0483

Awaiting Analysis

Source-cve-coordination@incibe.es

Published At-28 Jan, 2026 | 12:15

Updated At-29 Jan, 2026 | 16:31

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.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Type: Secondary

Version: 4.0

Base score: 6.9

Base severity: MEDIUM

Vector:

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE ID	Type	Source
CWE-79	Primary	cve-coordination@incibe.es

CWE ID: CWE-79

Type: Primary

Source: cve-coordination@incibe.es

References

Hyperlink	Source	Resource
https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-vulnerability-livehelperchat	cve-coordination@incibe.es	N/A

Hyperlink: https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-vulnerability-livehelperchat

Source: cve-coordination@incibe.es

Resource: N/A

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History