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CVE-2026-63667— ApostropheCMS: Arbitrary file read via import-export attachment-name path traversal

Quick assessment

Affected
apostrophecms apostrophe
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.

Apostrophe Technologies ApostropheCMS是Apostrophe Technologies公司开源的一个全栈内容管理系统。 Apostrophe Technologies ApostropheCMS 3.6.2之前版本存在路径遍历漏洞，该漏洞源于import-export模块中的gzip.js根据攻击者控制的_id、name和extension字段构造附件源路径，未确保解析后的路径保持在解压附件目录内，可能导致经过身份验证的贡献者导入特制存档，读取具有允许扩展名的主机文件，

CVSS 6.5 · Medium EPSS 0.34% · P27

Affected Version Matrix 1

VendorProduct Version RangeStatus
apostrophecms apostrophe < 3.6.2 affected
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I. Basic Information for CVE-2026-63667

Vulnerability Information
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Vulnerability Title
ApostropheCMS: Arbitrary file read via import-export attachment-name path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
ApostropheCMS is an open-source Node.js content management system. Prior to 3.6.2, the import-export module in packages/import-export/lib/formats/gzip.js constructs an attachment source path from the attacker-controlled _id, name, and extension fields in aposAttachments.json without ensuring that the resolved path remains under the extracted attachments directory, allowing an authenticated contributor to import a crafted archive, read a host file with an allowed extension, and publish the copied file at an unauthenticated uploads URL. This issue is fixed in version 3.6.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Apostrophe Technologies ApostropheCMS 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apostrophe Technologies ApostropheCMS是Apostrophe Technologies公司开源的一个全栈内容管理系统。 Apostrophe Technologies ApostropheCMS 3.6.2之前版本存在路径遍历漏洞，该漏洞源于import-export模块中的gzip.js根据攻击者控制的_id、name和extension字段构造附件源路径，未确保解析后的路径保持在解压附件目录内，可能导致经过身份验证的贡献者导入特制存档，读取具有允许扩展名的主机文件，
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
apostrophecms apostrophe < 3.6.2 -

II. Public POCs for CVE-2026-63667

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III. Intelligence Information for CVE-2026-63667

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Patches & Fixes for CVE-2026-63667 (1)

Vendor Advisories for CVE-2026-63667 (1)

Same Patch Batch · apostrophecms · 2026-08-17 · 4 CVEs total

CVE-2026-71553 7.1 HIGH ApostropheCMS: 2nd-order prototype pollution via PATCH leading to single-request persisten
CVE-2026-63669 6.5 MEDIUM ApostropheCMS: Missing destination-parent authorization in page `move()` allows a low-priv
CVE-2026-63670 6.1 MEDIUM ApostropheCMS: Mutation-XSS / allowedTags bypass via literal `</textarea/>` solidus close

IV. Related Vulnerabilities

Same product: apostrophe
Same vendor: apostrophecms
Same weakness: CWE-22

V. Comments for CVE-2026-63667

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