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CVE-2026-103290— Ghost 6.14.0 before 6.27.0 Path Traversal via ImageSize

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 6.14.0 至 6.27.0 之前的版本中，ImageSize 服务存在路径遍历漏洞。由于对用户提供的文件路径缺乏充分的输入验证，经过身份验证的工作人员用户可能能够访问服务器上预期数据存储目录之外的本地文件。

CVSS 3.8 · Low

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2026-103290

Vulnerability Information
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Vulnerability Title
Ghost 6.14.0 before 6.27.0 Path Traversal via ImageSize
Source: CVE Program / CVE List V5
Vulnerability Description
Ghost versions 6.14.0 through versions prior to 6.27.0 contain a path traversal vulnerability in the ImageSize service. Insufficient input validation of user-supplied file paths may allow authenticated staff users to access local files outside the intended data storage directories on the server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
路径遍历：’…/…//’
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TryGhost Ghost 6.14.0 ~ 6.27.0 -

II. Public POCs for CVE-2026-103290

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III. Intelligence Information for CVE-2026-103290

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Other References for CVE-2026-103290 (2)

Same Patch Batch · TryGhost · 2026-10-01 · 26 CVEs total

CVE-2026-103268 8.8 HIGH Ghost 1.0.0 before 6.62.0 Suspension Bypass via Password Reset
CVE-2026-103283 8.1 HIGH Ghost 6.20.0 before 6.57.1 Authentication Bypass via Session Handling
CVE-2026-103277 8.1 HIGH Ghost 2.5.0 before 6.34.0 Untrusted Script Execution via oEmbed
CVE-2026-103292 8.0 HIGH Ghost 0.5.3 before 6.50.0 Cross-Site Scripting via ghost_head
CVE-2026-103271 7.5 HIGH Ghost 4.0.0 before 6.63.0 Restricted Content Bypass
CVE-2026-103272 7.5 HIGH Ghost 2.10.0 before 6.63.0 Staff Enumeration via Content API
CVE-2026-103286 7.3 HIGH Ghost 2.21.0 before 6.56.0 Privilege Escalation via Notifications
CVE-2026-103278 7.3 HIGH Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframe
CVE-2026-103266 7.1 HIGH Ghost 5.2.0 before 6.62.0 Unauthenticated Stripe Checkout Account Modification
CVE-2026-103279 6.8 MEDIUM Ghost 3.10.0 before 6.34.0 Session Invalidation Bypass
CVE-2026-103288 6.5 MEDIUM Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like
CVE-2026-103289 6.5 MEDIUM Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comments
CVE-2026-103291 6.4 MEDIUM Ghost 3.20.2 before 6.51.0 SSRF via image-size fetch
CVE-2026-103281 5.4 MEDIUM Ghost 3.23.0 before 6.23.0 API Key Exposure via Admin API
CVE-2026-103274 5.3 MEDIUM Ghost 5.3.0 before 6.58.0 Unauthenticated Comment Read
CVE-2026-103280 5.3 MEDIUM Ghost 0.8.0 before 6.23.0 Information Disclosure via Setup Endpoint
CVE-2026-103269 5.3 MEDIUM Ghost 5.3.0 before 6.62.0 Missing Authorization via Post Excerpts
CVE-2026-103276 5.3 MEDIUM Ghost before 6.20.0 File Read via URL Encoding Bypass
CVE-2026-103284 4.3 MEDIUM Ghost 5.125.1 before 6.57.1 Information Disclosure via Feedback
CVE-2026-103282 4.3 MEDIUM Ghost 0.5.0 before 6.23.0 Multiple Account Creation via Invite Token

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Ghost
Same vendor: TryGhost
Same weakness: CWE-35

V. Comments for CVE-2026-103290

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