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CVE-2026-104967— Plane: Cross-workspace association destruction and issue mutation/read via unscoped queries in BulkDeleteIssuesEndpoint and SubIssuesEndpoint

Quick assessment

Affected
makeplane plane
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.

Plane 是一款开源的项目管理工具。在 1.4.0 版本之前，apps/api/plane/app/views/issue/ 目录中的 BulkDeleteIssuesEndpoint 和 SubIssuesEndpoint 接口会接受通过请求体或 URL 参数提供的 issue ID，并在未验证这些 ID 是否属于调用者所属工作区和项目的情况下直接对其执行操作。这两个端点上应用的权限装饰器（permission decorator）仅验证调用者是否是 URL 中指定的工作区和项目的成员或管理员，而未进一步检查所

CVSS 5.4 · Medium
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I. Basic Information for CVE-2026-104967

Vulnerability Information
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Vulnerability Title
Plane: Cross-workspace association destruction and issue mutation/read via unscoped queries in BulkDeleteIssuesEndpoint and SubIssuesEndpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Plane is an open-source project management tool. Prior to 1.4.0, BulkDeleteIssuesEndpoint and SubIssuesEndpoint in apps/api/plane/app/views/issue/ accept body- or URL-supplied issue IDs and operate on them without checking that the IDs belong to the caller's workspace and project. The permission decorator on each endpoint validates only that the caller is a member or administrator of the workspace and project named in the URL. BulkDeleteIssuesEndpoint can destroy CycleIssue and ModuleIssue associations belonging to foreign issues. SubIssuesEndpoint can re-parent foreign issues under an attacker-selected issue and return the foreign issues' metadata. This issue is fixed in 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
makeplane plane < 1.4.0 -

II. Public POCs for CVE-2026-104967

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III. Intelligence Information for CVE-2026-104967

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Other References for CVE-2026-104967 (4)

Same Patch Batch · makeplane · 2026-10-05 · 38 CVEs total

CVE-2026-105636 9.9 CRITICAL Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set)
CVE-2026-105639 9.8 CRITICAL Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation tok
CVE-2026-105641 9.8 CRITICAL Plane: Hardcoded SECRET_KEY and LIVE_SERVER_SECRET_KEY shipped in aio/cli community deploy
CVE-2026-105637 9.6 CRITICAL Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling of CVE-2026-4
CVE-2026-105638 9.1 CRITICAL Plane: Magic-code verifier endpoint has no rate limit, enabling 6-digit OTP brute force
CVE-2026-105640 9.1 CRITICAL Plane: Account Takeover via Unverified OAuth Email Match (Gitea, self-managed GitLab)
CVE-2026-104968 8.7 HIGH Plane: Cross-workspace member enumeration via /api/workspaces/{slug}/entity-search/
CVE-2026-105630 8.7 HIGH Plane: Stored XSS via SVG attachment served inline on the application origin (account take
CVE-2026-105632 8.7 HIGH Plane: Broken Access Control - joinProject GraphQL mutation allows self-join into private
CVE-2026-104979 8.7 HIGH Plane: Cross-tenant stored XSS in intake enables account takeover
CVE-2026-104976 8.7 HIGH Plane: SSRF in Gitea OAuth
CVE-2026-104966 8.7 HIGH Plane: Cross-Workspace IDOR in Estimate and Comment Endpoints Allows Read, Modify, and Inj
CVE-2026-104892 8.7 HIGH Plane: Plaintext logging of API token
CVE-2026-104971 8.5 HIGH Plane: Cross-Workspace Asset Duplication IDOR + WorkspaceFileAssetEndpoint and FileAssetEn
CVE-2026-104978 8.2 HIGH Plane: Invitation Hijack in Project Join Flow via Missing Authorization and Email-Only Acc
CVE-2026-105634 8.1 HIGH Plane: Privilege Escalation: Project Guest Can Demote Admin/Member Roles
CVE-2026-104974 8.1 HIGH Plane: Disabled User Auto-Reactivation on Login
CVE-2026-104970 8.1 HIGH Plane: InstanceAdminSignUpEndpoint TOCTOU race allows two concurrent unauthenticated calle
CVE-2026-104977 7.7 HIGH Plane: Incomplete fix of CVE-2026-27706 — SSRF still reachable on: missing is_blocked_ip (
CVE-2026-105628 7.6 HIGH Plane: OAuth Avatar Redirect SSRF Leads to Internal Data Exfiltration via Static Asset End

Showing top 20 of 38 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: plane
Same vendor: makeplane
Same weakness: CWE-639

V. Comments for CVE-2026-104967

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