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TI-2026-54389 Aliases CVE-2026-78203GHSA-r3hm-6h2p-vf9v

Ghostwriter before 7.1.2 Cross-Client Report Template Disclosure via Unauthorized Template Swap

Priority LOW 31CWE-639Published · Updated

Key facts

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

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

Summary

Ghostwriter before 7.1.2 fails to validate template ownership in the report template swap endpoint, allowing attackers to attach client-scoped templates from other clients to their own reports. Attackers can exploit sequential template primary keys to enumerate and attach foreign templates, then generate reports to disclose template contents including letterhead, boilerplate, and methodology text.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00369 30th percentileScored 2026-11-07
Fix Fixed Ghostwriter (GhostManager): 7.1.2

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
GhostManagerGhostwriterbefore 7.1.27.1.2Patch availableCNA
  • Ghostwriter VendorGhostManager Affected before 7.1.2 Fixed in 7.1.2 Patch available CNA

Remediation

  • Fix · CNA Ghostwriter (GhostManager) Fixed in 7.1.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-78203
  2. 2026-10-03 Alias added: GHSA-r3hm-6h2p-vf9v

References

Patch 1

Advisory 1

Other 2

  • TI-2026-54390 Ghostwriter through 7.2.6 Missing Authorization on Report Template Lint Endpoints CVSS 4.0MEDIUM 5.3

Sources

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