{"id":"CVE-2026-102980","published":"2026-10-14T20:17:28.600","lastModified":"2026-10-15T15:17:20.270","description":"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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/makeplane/plane/commit/cfe951c8af41b0fcf1c792e5ad664d00f77709ce","tags":[]},{"url":"https://github.com/makeplane/plane/pull/9380","tags":[]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-ghcr-frqr-6pqr","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-ghcr-frqr-6pqr","tags":[]}],"exploitRefs":[{"url":"https://github.com/makeplane/plane/commit/cfe951c8af41b0fcf1c792e5ad664d00f77709ce","tags":[]},{"url":"https://github.com/makeplane/plane/pull/9380","tags":[]},{"url":"https://github.com/makeplane/plane/releases/tag/v1.4.0","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-ghcr-frqr-6pqr","tags":[]},{"url":"https://github.com/makeplane/plane/security/advisories/GHSA-ghcr-frqr-6pqr","tags":[]}],"hasPoc":true,"ai":null}