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TI-2026-76445 Aliases CVE-2026-111939GHSA-4f8v-crcw-833x

Frappe Helpdesk authorization bypass lets users impersonate customers

Priority LOW 23CWE-639Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Frappe Helpdesk before 1.26.0 contains an authorization bypass (CWE-639) that lets authenticated portal users create tickets on behalf of other customers by supplying a raised_by value. An authenticated remote attacker with low privileges can plant phishing tickets in a victim's portal and read the victim's replies through the ticket activity endpoint.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Frappe Helpdesk before 1.26.0 contains an authorization bypass vulnerability that allows authenticated portal users to create tickets impersonating other customers by supplying a raised_by value. Attackers can call the hd_ticket.api.new endpoint with a victim's email to plant phishing tickets in their portal and read their replies via get_ticket_activities.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00223 12th percentileScored 2026-11-07
Fix Fixed helpdesk (frappe): 1.26.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
frappehelpdeskbefore 1.26.01.26.0Patch availableCNA
  • helpdesk Vendorfrappe Affected before 1.26.0 Fixed in 1.26.0 Patch available CNA

Remediation

Frappe Helpdesk is fixed in version 1.26.0. Upgrade to 1.26.0 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA helpdesk (frappe) Fixed in 1.26.0

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-111939
  2. 2026-10-19 Alias added: GHSA-4f8v-crcw-833x

References

Patch 2

Advisory 1

Other 3

  • TI-2026-28140 ERPNext v15.103.1 and before is vulnerable to Server-Side Template Injection (SSTI). CVSS 3.1CRITICAL 9.8
  • TI-2025-40873 An issue was discovered in Frappe ERPNext through 15.89.0. CVSS 3.1CRITICAL 9.8
  • TI-2025-40872 An issue was discovered in Frappe ERPNext through 15.89.0. CVSS 3.1CRITICAL 9.8
  • TI-2025-40871 A Server-Side Template Injection (SSTI) vulnerability exists in the Frappe ERPNext… CVSS 3.1CRITICAL 9.8
  • TI-2025-32462 In Frappe ERPNext 15.57.5, the function get_rfq_containing_supplier() at… CVSS 3.1HIGH 8.2
  • TI-2025-32461 In Frappe ERPNext 15.57.5, the function get_stock_balance_for() at… CVSS 3.1HIGH 8.2
See all 321 →

Sources

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