CVE-2026-102980

MEDIUM 6.5

Plane: Cross-Project Page Content Disclosure via PageVersionEndpoint Missing Project Scope

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

Plane is an open-source project management tool. Prior to 1.4.0, PageVersionEndpoint in apps/api/plane/app/views/page/version.py scopes page-version lookups by workspace and page identifiers but not by the project_id from the URL. ProjectPagePermission likewise derives the caller's role from the URL project while resolving the requested page workspace-wide, so a member of one project can use that project's identifier to read description_html for a public page in another project in the same workspace. The affected path is read-only and does not enable cross-project page modification. This issue is fixed in version 1.4.0.

CWE	CWE-639
Vendor	makeplane
Product	plane
Published	Oct 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

makeplane / plane

< 1.4.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/makeplane/plane/security/advisories/GHSA-ghcr-frqr-6pqr github.com: https://github.com/makeplane/plane/pull/9380 github.com: https://github.com/makeplane/plane/commit/cfe951c8af41b0fcf1c792e5ad664d00f77709ce github.com: https://github.com/makeplane/plane/releases/tag/v1.4.0