Vulnerability · Published Aug 24, 2026 · Assigned by VulnCheck

CVE-2026-78203Ghostwriter before 7.1.2 Cross-Client Report Template Disclosure via Unauthorized Template Swap

High 7.1

In plain English

A high-severity authorization bypass via user-controlled key in Ghostwriter from GhostManager. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.4%top 69.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
GhostManager	Ghostwriter	0 – before 7.1.2

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

Patch Commit patch
https://github.com/GhostManager/Ghostwriter product
https://github.com/GhostManager/Ghostwriter/blob/v7.1.1/ghostwriter/reporting/views.py#L275-L315 technical-description
https://github.com/geo-chen/oss/blob/main/Ghostwriter.md third-party-advisory
VulnCheck Advisory: Ghostwriter before 7.1.2 Cross-Client Report Template Disclosure via Unauthorized Template Swap third-party-advisory