CVE-2026-27705
CVE-2026-27705 is a medium-severity vulnerability in Plane with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-639.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v4: 4.9
- EPSS exploit prediction: 0% (12th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-8681
- Weakness: CWE-639
- Affected product: Plane
- Published:
- Last modified:
Description
Plane is an an open-source project management tool. Prior to version 1.2.2, the `ProjectAssetEndpoint.patch()` method in `apps/api/plane/app/views/asset/v2.py` (lines 579–593) performs a global asset lookup using only the asset ID (`pk`) via `FileAsset.objects.get(id=pk)`, without verifying that the asset belongs to the workspace and project specified in the URL path. This allows any authenticated user (including those with the GUEST role) to modify the `attributes` and `is_uploaded` status of assets belonging to any workspace or project in the entire Plane instance by guessing or enumerating asset UUIDs. Version 1.2.2 fixes the issue.
Frequently asked questions
- What is CVE-2026-27705?
- Plane is an an open-source project management tool. Prior to version 1.2.2, the `ProjectAssetEndpoint.patch()` method in `apps/api/plane/app/views/asset/v2.py` (lines 579–593) performs a global asset lookup using only the asset ID (`pk`) via `FileAsset.objects.get(id=pk)`, without verifying that the asset belongs to the workspace and project specified in the URL path. This allows any authenticated user (including those with the GUEST role) to modify the `attributes` and `is_uploaded` status of assets belonging to any workspace or project in the entire Plane instance by guessing or enumerating asset UUIDs. Version 1.2.2 fixes the issue.
- How severe is CVE-2026-27705?
- CVE-2026-27705 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2026-27705 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-27705?
- CVE-2026-27705 affects Plane. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-27705?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-27705 have an EU (EUVD) identifier?
- Yes. CVE-2026-27705 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8681.
- When was CVE-2026-27705 published?
- CVE-2026-27705 was published on 2026-02-25 and last updated on 2026-06-17.
References
- https://github.com/makeplane/plane/commit/9070acbbe81bc02db5c169789da6862d5fc35d96
- https://github.com/makeplane/plane/releases/tag/v1.2.2
- https://github.com/makeplane/plane/security/advisories/GHSA-rfj3-8c85-g46j
Affected products (1)
- cpe:2.3:a:plane:plane:*:*:*:*:*:*:*:*
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