{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39374 exists.","fix":"No fix has been published for CVE-2026-39374 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-39374 is a medium-severity missing authorization vulnerability in makeplane plane, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-39374 and fix it if it is affected.\n\nWhat it is: CVE-2026-39374 is a medium-severity missing authorization vulnerability in makeplane plane, published on 7 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-39374 exists.\n\nAffected product: makeplane plane. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-39374/ (Markdown: https://insights.sbomify.com/CVE-2026-39374/index.md)","id":"CVE-2026-39374","markdown":"https://insights.sbomify.com/CVE-2026-39374/index.md","name":"CVE-2026-39374","record":{"aliases":["GHSA-4q54-h4x9-m329"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Plane project management","requires_auth":"low_privilege","summary":"A project member can modify issue dates across any workspace or project due to missing authorization checks in the bulk update endpoint.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"plane","vendor":"plane"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Plane is an an open-source project management tool. Prior to 1.3.0, the IssueBulkUpdateDateEndpoint allows a project member (ADMIN or MEMBER) to modify the start_date and target_date of ANY issue across the entire Plane instance, regardless of workspace or project membership. The endpoint fetches issues by ID without filtering by workspace or project, enabling cross-boundary data modification. This vulnerability is fixed in 1.3.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Plane IDOR: Cross-Project Issue Date Modification via Bulk Update Endpoint","id":"CVE-2026-39374","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"FastFeedParser has an infinite redirect loop DoS via meta-refresh chain","id":"CVE-2026-39376"},"packages":[],"prev":{"headline":"JWCrypto: JWE ZIP decompression bomb","id":"CVE-2026-39373"},"products":["plane"],"published":"2026-04-07","related":[{"cvss_score":9.3,"headline":"Plane allows server side request forgery via /_next/image endpoint","id":"CVE-2024-47830","kev_date_added":null,"published":"2024-10-11"},{"cvss_score":8.5,"headline":"Plane: SSRF via Incomplete IP Validation in Webhook URL Serializer","id":"CVE-2026-30242","kev_date_added":null,"published":"2026-03-06"},{"cvss_score":8.3,"headline":"Missing authorization in plane","id":"CVE-2026-46558","kev_date_added":null,"published":"2026-06-10"},{"cvss_score":7.7,"headline":"Plane has a Server-Side Request Forgery (SSRF) in Favicon Fetching","id":"CVE-2026-39843","kev_date_added":null,"published":"2026-04-09"},{"cvss_score":7.7,"headline":"Plane Vulnerable to Full Read SSRF via Favicon Fetching in \"Add Link\" Feature","id":"CVE-2026-27706","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":7.5,"headline":"Plane: Unauthenticated Workspace Member Information Disclosure","id":"CVE-2026-30244","kev_date_added":null,"published":"2026-03-06"},{"cvss_score":7.1,"headline":"Plane v0.7.1 - Unauthorized access to files","id":"CVE-2023-2268","kev_date_added":null,"published":"2023-07-15"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-08","vendors":["makeplane"]},"summary":"A project member can modify issue dates across any workspace or project due to missing authorization checks in the bulk update endpoint.","url":"https://insights.sbomify.com/CVE-2026-39374/"}