CVE-2026-104979

Plane is an open-source project management tool. Prior to 1.4.0, IntakeIssuePublicViewSet.create in Plane v1.3.1 writes descriptionhtml through Issue.objects.create... without calling validatehtmlcontent from nh3. Any authenticated user, including a new user with no workspace memberships, can pla...

CVE-2026-104979

The open-source project management tool Plane is vulnerable to a cross-tenant stored XSS in versions prior to 1.4.0 . The root cause is that IntakeIssuePublicViewSet.create in Plane v1.3.1 writes description_html via Issue.objects.create(...) without invoking validate_html_content from nh3 . This...

CVE-2026-104979 Plane: Cross-tenant stored XSS in intake enables account takeover

Plane is an open-source project management tool. Prior to 1.4.0, IntakeIssuePublicViewSet.create in Plane v1.3.1 writes descriptionhtml through Issue.objects.create... without calling validatehtmlcontent from nh3. Any authenticated user, including a new user with no workspace memberships, can pla...