CVE-2026-104978High· 8.2▾ TwilightPlane is an open-source project management tool. Prior to 1.4.0, Plane's project invitation list endpoint is accessible to any authenticated user who knows the workspace slug and project ID, while the public project invitation join endpo…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.1 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Plane is an open-source project management tool. Prior to 1.4.0, Plane's project invitation list endpoint is accessible to any authenticated user who knows the workspace slug and project ID, while the public project invitation join endpoint accepts an invitation based only on a submitted email address. When a pending invitation targets an email address that has not registered with Plane, an attacker can enumerate the invitation, register an account using the invited email without mailbox verification, and accept the invitation. The attacker-controlled account is then added to the target workspace and project. This issue is fixed in 1.4.0.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-104963Medium· 4.3Plane is an open-source project management tool
CVE-2026-104961Medium· 5.4Plane is an open-source project management tool
CVE-2026-105636Critical· 9.9Plane: SSRF via HTTP redirect in webhook delivery (allow_redirects not set)
CVE-2026-105635High· 7.4Plane: Unauthenticated Project Invitation Email Disclosure Enables Unauthorized Project Join Without Token
CVE-2026-105637Critical· 9.6Plane: Cross-Project Asset Hijacking via 'ProjectBulkAssetEndpoint' (sibling of CVE-2026-46558)
CVE-2026-105638Critical· 9.1Plane: Magic-code verifier endpoint has no rate limit, enabling 6-digit OTP brute force