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CVE-2026-84204— GROWI through 8.0.2 Missing Authorization on apiv3 Attachment Retrieval

Quick assessment

Affected
growilabs growi
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.

GROWI是日本GROWI组织开源的一款企业级文档管理平台。 GROWI 8.0.2及之前版本存在授权问题漏洞，该漏洞源于GET /_api/v3/attachment/:id端点未能验证页面访问权限，可能导致已认证攻击者通过提供已知附件标识符检索无法查看页面的附件元数据。

CVSS 6.5 · Medium EPSS 0.41% · P35

Affected Version Matrix 1

VendorProduct Version RangeStatus
growilabs growi ≤ 8.0.2 affected
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I. Basic Information for CVE-2026-84204

Vulnerability Information
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Vulnerability Title
GROWI through 8.0.2 Missing Authorization on apiv3 Attachment Retrieval
Source: CVE Program / CVE List V5
Vulnerability Description
GROWI contains an access control vulnerability in the GET /_api/v3/attachment/:id endpoint that fails to validate page access permissions. Authenticated attackers can retrieve attachment metadata from pages they cannot view by supplying known attachment identifiers.
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
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
GROWI 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GROWI是日本GROWI组织开源的一款企业级文档管理平台。 GROWI 8.0.2及之前版本存在授权问题漏洞，该漏洞源于GET /_api/v3/attachment/:id端点未能验证页面访问权限，可能导致已认证攻击者通过提供已知附件标识符检索无法查看页面的附件元数据。
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
growilabs growi 0 ~ 8.0.2 -

II. Public POCs for CVE-2026-84204

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III. Intelligence Information for CVE-2026-84204

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Patches & Fixes for CVE-2026-84204 (2)

Vendor Advisories for CVE-2026-84204 (1)

Vendor Pages for CVE-2026-84204 (2)

IV. Related Vulnerabilities

Same product: growi
Same vendor: growilabs
Same weakness: CWE-862

V. Comments for CVE-2026-84204

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