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

Quick assessment

Affected
GhostManager Ghostwriter
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ghostwriter 7.1.2 之前的版本在报告模板交换端点未正确验证模板的所有权，导致攻击者可以将来自其他客户端的、受客户端作用域限制的模板附加到自己的报告中。攻击者可以通过利用顺序的模板主键来枚举并附加非自身所属的模板，随后生成报告，从而泄露模板内容，包括信头、通用文本和方法论描述等。

CVSS 7.1 · High EPSS 0.27% · P19

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
GhostManager Ghostwriter < 7.1.2 affected
7.1.2 unaffected
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I. Basic Information for CVE-2026-78203

Vulnerability Information
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Vulnerability Title
Ghostwriter before 7.1.2 Cross-Client Report Template Disclosure via Unauthorized Template Swap
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
GhostManager Ghostwriter 0 ~ 7.1.2 -

II. Public POCs for CVE-2026-78203

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8081 chars
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III. Intelligence Information for CVE-2026-78203

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Patches & Fixes for CVE-2026-78203 (1)

Security Blog Posts for CVE-2026-78203 (1)

Other References for CVE-2026-78203 (1)

IV. Related Vulnerabilities

Same product: Ghostwriter
Same vendor: GhostManager
Same weakness: CWE-639

V. Comments for CVE-2026-78203

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