Cross-site Scripting (XSS) - Reflected in livehelperchat/livehelperchat
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
livehelperchat is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Why it matters now
EPSS 0.00974 62nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| livehelperchat | livehelperchat/livehelperchat | up to 3.90 | — | No fix listed | CNA |
- livehelperchat/livehelperchat Vendorlivehelperchat Affected up to 3.90 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:livehelperchat:live_helper_chat:*:*:*:*:*:*:*:* | up to 3.90 | Vulnerable | livehelperchat |
- cpe:2.3:a:livehelperchat:live_helper_chat:*:*:*:*:*:*:*:* Versions up to 3.90 Vulnerable ·livehelperchat
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4169
- 2026-10-03 Alias added: GHSA-76hh-gp2h-4r6g
References
More livehelperchat Live Helper Chat vulnerabilities
- TI-2024-18290 Server-Side Template Injection (SSTI) vulnerability in livehelperchat before 4.34v… CVSS 3.1CRITICAL 9.8
- TI-2025-32325 A stored cross-site scripting (XSS) vulnerability in the department assignment editing… CVSS 3.1MEDIUM 6.5
- TI-2025-32324 A stored cross-site scripting (XSS) vulnerability in the chat transfer function of Live… CVSS 3.1MEDIUM 5.4
- TI-2025-32323 A stored cross-site scripting (XSS) vulnerability in the Personal Canned Messages of Live… CVSS 3.1MEDIUM 5.4
- TI-2025-32322 A stored cross-site scripting (XSS) vulnerability in the Facebook registration page of… CVSS 3.1MEDIUM 5.4
- TI-2025-32321 A stored cross-site scripting (XSS) vulnerability in the Facebook Chat module of Live… CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-4169 · CVE Program
- CVE-2021-4169 · NVD
- FIRST EPSS
- GHSA-76hh-gp2h-4r6g · GitHub Advisory Database · CC BY 4.0
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