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    CVE-2026-84204

    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.

    Published:Sep 1, 2026
    Last Modified:Sep 2, 2026
    EPS:Sep 1, 2026
    EPSS Score:0.00238
    CVSS Score:6.5

    Affected Products

    Vendor
    Growi
    Product
    Growi

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

    Related CVEs

    CVE-2026-84205 (CVSS 7.1) — GROWI contains an access control vulnerability in the GET /_api/v3/revisions/:id endpoint that validates acces…
    CVE-2026-53620 (CVSS 5.3) — GROWI contains a vulnerability with an authorization bypass through user-controlled key in the bookmark folder…
    CVE-2026-68951 (CVSS 6.9) — GROWI contains an incorrect authorization vulnerability. If this vulnerability is exploited, an unauthenticate…
    CVE-2026-80191 (CVSS 8.7) — GROWI applies its page-viewer permission check to attachment requests only when the request carries an authent…
    CVE-2026-41951 (CVSS 8.6) — Path traversal vulnerability exists in GROWI v7.5.0 and earlier, which may allow an attacker to execute arbitr…
    CVE-2026-41040 (CVSS 8.7) — GROWI provided by GROWI, Inc. is vulnerable to a regular expression denial of service (ReDoS) via a crafted in…
    CVE-2026-26291 (CVSS 4.8) — Stored cross-site scripting vulnerability exists in GROWI v7.4.6 and earlier. If this vulnerability is exploit…
    CVE-2026-25083 (CVSS 8.7) — GROWI OpenAI thread/message API endpoints do not perform authorization. Affected are v7.4.5 and earlier versio…
    CVE-2025-64700 (CVSS 5.1) — Cross-site request forgery vulnerability exists in GROWI v7.3.3 and earlier. If a user views a malicious page …
    CVE-2025-61994 (CVSS 4.8) — Cross-site scripting vulnerability exists in GROWI prior to v7.2.10. If a malicious user creates a page contai…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High