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CVE-2026-78203

7.1 · HIGH

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.

Published Aug 24, 2026CWE-639EPSS 0.37%

Overview

CVE-2026-78203 is a high-severity vulnerability. It was published on August 24, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/GhostManager/GhostwriterGitHubgithub.com/GhostManager/Ghostwriter/blob/v7.1.1/ghostwriter/reporting/views.py#L275-L315GitHubgithub.com/GhostManager/Ghostwriter/commit/5b2a4a297e44c823c16f65b1ba101c742791cd0bGitHubgithub.com/geo-chen/oss/blob/main/Ghostwriter.mdRefwww.vulncheck.com/advisories/ghostwriter-before-cross-client-report-template-disclosure-via-unauthorized-template-swap

How CyberStrike helps

Frequently asked questions

What is CVE-2026-78203?

CVE-2026-78203 is a high-severity vulnerability. It was published on August 24, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-78203?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-78203?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-78203?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-78203 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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