Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
4DescriptionGitHub Advisory
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.
AnalysisAI
Plane project management tool versions prior to 1.3.0 allow authenticated project members to modify issue dates across workspace and project boundaries via the IssueBulkUpdateDateEndpoint, which lacks proper authorization filtering. An attacker with ADMIN or MEMBER role in any project can arbitrarily change start_date and target_date fields on issues they have no legitimate access to, enabling data integrity violations across the entire Plane instance. …
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Vulnerability AssessmentAI
| Risk Assessment | CVSS score of 6.5 (Medium) with vector AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N reflects a network-accessible privilege escalation requiring only low authentication privileges and no user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A disgruntled or compromised employee with MEMBER role in Project A within Workspace X can use the IssueBulkUpdateDateEndpoint to enumerate and modify issue dates in Project B across Workspace Y or other unrelated projects by discovering or guessing valid issue IDs. For example, the attacker crafts a bulk update request with target_date set to past dates for all critical issues in a competitor's or rival team's project, causing project timeline disruptions and data integrity violations without detection of scope violation. … |
| Remediation | Upgrade Plane to version 1.3.0 or later, which implements proper authorization filtering in the IssueBulkUpdateDateEndpoint to restrict date modifications only to issues within the user's authorized workspace and projects. … Detailed patch versions, workarounds, and compensating controls in full report. |
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EUVD-2026-19913