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CVE-2026-27939— Statamic allows Authenticated Control Panel users to escalate privileges via elevated session bypass

Quick assessment

Affected
statamic cms
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.

cms是Statamic开源的一个软件包。 cms 6.0.0至6.4.0之前版本存在授权问题漏洞，该漏洞源于权限验证不当，可能导致权限提升。

CVSS 8.8 · High EPSS 0.46% · P38
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I. Basic Information for CVE-2026-27939

Vulnerability Information
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Vulnerability Title
Statamic allows Authenticated Control Panel users to escalate privileges via elevated session bypass
Source: CVE Program / CVE List V5
Vulnerability Description
Statmatic is a Laravel and Git powered content management system (CMS). Starting in version 6.0.0 and prior to version 6.4.0, Authenticated Control Panel users may under certain conditions obtain elevated privileges without completing the intended verification step. This can allow access to sensitive operations and, depending on the user’s existing permissions, may lead to privilege escalation. This has been fixed in 6.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
cms 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cms是Statamic开源的一个软件包。 cms 6.0.0至6.4.0之前版本存在授权问题漏洞，该漏洞源于权限验证不当，可能导致权限提升。
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
statamic cms >= 6.0.0, < 6.4.0 -

II. Public POCs for CVE-2026-27939

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8783 chars
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In-depth vulnerability mechanism
Trigger conditions & impact
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POC zip download
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III. Intelligence Information for CVE-2026-27939

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Patches & Fixes for CVE-2026-27939 (1)

Same Patch Batch · statamic · 2026-02-27 · 5 CVEs total

CVE-2026-28426 8.7 HIGH Statamic vulnerable to privilege escalation via stored cross-site scripting
CVE-2026-28425 8.0 HIGH Statamic vulnerable to remote code execution via Antlers-enabled control panel inputs
CVE-2026-28423 6.8 MEDIUM Statamic Vulnerable to Server-Side Request Forgery via Glide
CVE-2026-28424 6.5 MEDIUM Statamic's missing authorization allows access to email addresses

IV. Related Vulnerabilities

Same product: cms
Same vendor: statamic
Same weakness: CWE-287

V. Comments for CVE-2026-27939

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