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CVE-2026-70596— Ghost: Cross-Site Scripting in Feature Image Captions

Quick assessment

Affected
TryGhost Ghost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ghost是Ghost组织开源的一个内容管理系统。 Ghost 4.9.0版本至6.54.1之前版本存在跨站脚本漏洞，该漏洞源于输入验证问题，可能导致任意员工用户通过在feature_image_caption中创建内容劫持另一员工用户的Ghost Admin会话，从而实现权限提升。

CVSS 4.3 · Medium EPSS 0.32% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
TryGhost Ghost >= 4.9.0, < 6.54.1 affected
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I. Basic Information for CVE-2026-70596

Vulnerability Information
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Vulnerability Title
Ghost: Cross-Site Scripting in Feature Image Captions
Source: CVE Program / CVE List V5
Vulnerability Description
Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin session, resulting in privilege escalation. This issue is fixed in 6.54.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Ghost 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ghost是Ghost组织开源的一个内容管理系统。 Ghost 4.9.0版本至6.54.1之前版本存在跨站脚本漏洞，该漏洞源于输入验证问题，可能导致任意员工用户通过在feature_image_caption中创建内容劫持另一员工用户的Ghost Admin会话，从而实现权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TryGhost Ghost >= 4.9.0, < 6.54.1 -

II. Public POCs for CVE-2026-70596

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III. Intelligence Information for CVE-2026-70596

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Patches & Fixes for CVE-2026-70596 (2)

Vendor Advisories for CVE-2026-70596 (1)

IV. Related Vulnerabilities

Same product: Ghost
Same vendor: TryGhost
Same weakness: CWE-79

V. Comments for CVE-2026-70596

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