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TI-2026-32533 Aliases CVE-2026-44633

Live Helper Chat: REST API chat update accepts arbitrary chat fields across department boundaries

Priority HIGH 70CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

Live Helper Chat is an open-source application that enables live support websites. In 4.84v, the Live Helper Chat REST API chat update endpoint allows a REST user with lhchat/use to update a chat in a department they cannot read. The endpoint accepts arbitrary chat object fields, so the user can change the chat hash and status and then access or tamper with the chat through visitor/widget paths. The same write primitive can set operation_admin, which is later emitted as operator-side JavaScript.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0027 19th percentileScored 2026-11-07
Fix Fixed livehelperchat (LiveHelperChat): 4.84v

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
livehelperchatlivehelperchatbefore 4.84v4.84vPatch availableCNA
  • livehelperchat Vendorlivehelperchat Affected before 4.84v Fixed in 4.84v Patch available CNA

Remediation

  • Fix · CNA livehelperchat (LiveHelperChat) Fixed in 4.84v

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44633

References

Other 1

  • 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
See all 44 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences