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CVE-2026-103278— Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframe

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 5.8.0 至 6.34.0（不含）版本的管理界面 iframe 中存在输入验证漏洞，允许攻击者接管工作人员账户。拥有内容发布权限的攻击者可构造恶意页面，当活跃的工作人员用户访问这些页面时，由于输入验证不当，可能导致账户被接管。

CVSS 7.3 · High EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
TryGhost Ghost 5.8.0< 6.34.0 affected
6.34.0 unaffected
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I. Basic Information for CVE-2026-103278

Vulnerability Information
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Vulnerability Title
Ghost 5.8.0 before 6.34.0 Staff Account Takeover via Admin iframe
Source: CVE Program / CVE List V5
Vulnerability Description
Ghost versions 5.8.0 before 6.34.0 contain an input validation vulnerability in the admin iframe that allows attackers to take over staff user accounts. Attackers with content publishing privileges can craft malicious pages that, when visited by active staff users, enable account takeover through improper input validation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
相对路径遍历
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TryGhost Ghost 5.8.0 ~ 6.34.0 -

II. Public POCs for CVE-2026-103278

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-103278

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Vendor Advisories for CVE-2026-103278 (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-2026-103266 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
CVE-2026-103275 4.3 MEDIUM Ghost 5.42.2 before 6.58.0 Password Hash Disclosure

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

IV. Related Vulnerabilities

Same product: Ghost
Same vendor: TryGhost
Same weakness: CWE-23

V. Comments for CVE-2026-103278

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