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CVE-2026-70588— Ghost: Cross-Site Scripting in Universal Import

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.

TryGhost Ghost是TryGhost组织开源的一个专注内容发布的托管平台。 TryGhost Ghost 5.26.0版本至6.54.1之前版本存在跨站脚本漏洞，该漏洞源于Ghost Admin中的Universal Import功能未能正确清理导入的内容，可能导致帖子内容出现跨站脚本。

CVSS 5.0 · Medium EPSS 0.43% · P34

Affected Version Matrix 1

VendorProduct Version RangeStatus
TryGhost Ghost >= 5.26.0, < 6.54.1 affected
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I. Basic Information for CVE-2026-70588

Vulnerability Information
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Vulnerability Title
Ghost: Cross-Site Scripting in Universal Import
Source: CVE Program / CVE List V5
Vulnerability Description
Ghost is a Node.js content management system. From 5.26.0 until 6.54.1, the Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content. This issue is fixed in version 6.54.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/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
TryGhost Ghost 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TryGhost Ghost是TryGhost组织开源的一个专注内容发布的托管平台。 TryGhost Ghost 5.26.0版本至6.54.1之前版本存在跨站脚本漏洞，该漏洞源于Ghost Admin中的Universal Import功能未能正确清理导入的内容，可能导致帖子内容出现跨站脚本。
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 >= 5.26.0, < 6.54.1 -

II. Public POCs for CVE-2026-70588

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III. Intelligence Information for CVE-2026-70588

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Patches & Fixes for CVE-2026-70588 (2)

Vendor Advisories for CVE-2026-70588 (1)

Same Patch Batch · TryGhost · 2026-08-04 · 7 CVEs total

CVE-2026-70594 6.7 MEDIUM Ghost: Session Fixation in Ghost Admin
CVE-2026-70593 6.6 MEDIUM Ghost: Theme Upload Path Traversal
CVE-2026-70592 5.5 MEDIUM Ghost: Database Backup Path Traversal
CVE-2026-70589 4.8 MEDIUM Ghost: Archived Offers can be Redeemed
CVE-2026-70590 4.8 MEDIUM Ghost: Blind Password Hash Disclosure in Ghost Admin API
CVE-2026-70591 4.1 MEDIUM Ghost: Server-Side Request Forgery in Image Fetching

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-70588

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