screentinker/server/routes
ScreenTinker fbf55f842c Close the third QA round: limiter bypass, stored XSS, break-glass, org placement
Four HIGH findings. Two were mine, and one was a composition of two of my own fixes.

ONE EXTRA SLASH DEFEATED EVERY /api/auth LIMITER

`/api/auth//login` still reaches the login handler — Express normalises the mount
boundary for the router — but `app.use('/api/auth/login', rateLimit(...))` does not
match it, so the limiter never runs. A review got a real session after 60 unthrottled
password attempts. Same for //totp/verify (unlimited 6-digit brute force),
//forgot-password (unlimited reset mail to any address) and //sso/discover (the
customer-enumeration cap, gone). Fixing the limiter KEY could never help, because the
middleware was never invoked: the path is now collapsed to one canonical form before
routing. Pre-existing, and it falsified this file's own warning about walking past the
login limiter.

STORED XSS: I ESCAPED ONE COPY OF THE TABLE

My earlier fix patched views/admin.js line 357 and missed line 372 in the same
function — and missed views/settings.js entirely, which renders a SECOND copy of the
platform users table from the same endpoint, including the email in a raw text node.
The write path was `POST /api/admin/users`, whose EMAIL_RE barred only whitespace, so
an org or workspace admin (not a platform admin) could choose an address that executed
in the operator's session. Both tables escaped, both regexes tightened to reject markup
characters, verified against 11 address shapes.

I KILLED THE BREAK-GLASS WHILE CLOSING AN ORACLE

Hoisting the domain check above the account lookup — my fix for the enumeration oracle
— made `user.role !== 'platform_admin'` unreachable for enforced domains. On a
self-host the operator IS the org owner, and my would_lock_out_actor guard GUARANTEES
their address is inside the enforced set, so the recovery loop closed on itself:
approving a removal request needs a signed-in platform admin. Both properties hold now
by letting the operator through on a CORRECT PASSWORD only — every wrong answer is the
identical 403 whether the address exists, does not exist, or is theirs. Verified: 200 /
403 / 403 / 403.

Also fixed: enabling SSO-only locked out every password-holding member including the
admin who pressed the button (password refused by policy, SSO refused by
account_exists_local). An org provider now adopts a password account at a domain it has
PROVED by DNS when the org requires SSO — which is what a verified domain means, and
what every hosted identity product does.

SSO USERS WERE LANDING IN A PERSONAL ORG

The membership write added organization_members but no workspace_members, and
ensureDefaultOrgForUser looks at workspaces — so it minted each SSO user a private
organization and made it their current one. The customer's Members page read
"Members (1)" while their staff signed in successfully and were invisible.

ALSO: bcrypt on a NULL password_hash 500'd with a stack (and was an oracle for accounts
a provider deletion had returned to local); stranded_members was returned by the server
and discarded by the UI; a provider with zero domains was the one useless state with no
warning; two limiter shapes were missing (removal-request shared the garbage bucket —
an unauthenticated flood could deny the SSO break-glass path); doubled mail subject
prefixes; a DELETE that toasted "Saved"; a decided request left in the DOM with live
listeners; and a confirm dialog promising "immediately" when sessions already open
survive.

1609 tests, three clean runs. Limiter, break-glass, oracle parity and null-password all
verified against a running server.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bvjey4FNam49MN7ybjcq6A
2026-08-11 11:25:11 -05:00
..
activity.js Phase 2.1: tenancy middleware, permission helpers, JWT workspace context, frontend + backend role-rename compat 2026-05-11 20:02:00 -05:00
admin.js Close the third QA round: limiter bypass, stored XSS, break-glass, org placement 2026-08-11 11:25:11 -05:00
agency.js Default a video playlist item to the clip's own length (#237) 2026-08-06 09:36:53 -05:00
ai.js feat(ai): separate optional image API key (#41) 2026-06-09 13:47:47 -05:00
assignments.js Default a video playlist item to the clip's own length (#237) 2026-08-06 09:36:53 -05:00
auth.js Close the third QA round: limiter bypass, stored XSS, break-glass, org placement 2026-08-11 11:25:11 -05:00
billing.js feat(#146): billing:read scoped token — dual-path auth for the Usage Report (Option C) 2026-07-01 21:16:21 -05:00
contact.js fix(landing): replace broken Custom pricing card with enterprise contact form 2026-05-14 13:52:24 -05:00
content.js QA: close four ways a control or an asset lied about itself 2026-08-06 16:12:29 -05:00
device-groups.js Default a video playlist item to the clip's own length (#237) 2026-08-06 09:36:53 -05:00
devices.js BrightSign: report IPv6, the attached display and the active video mode 2026-08-10 15:30:40 -05:00
folders.js Phase 2.2c: content_folders gets workspace_id (schema + backfill); folders.js scoped; content.js folder-move strict same-workspace 2026-05-11 21:04:03 -05:00
kiosk.js Validate kiosk style values as CSS rather than as HTML 2026-07-27 22:28:47 -05:00
layouts.js Save a layout by diffing its zones, not by deleting and re-inserting them 2026-07-30 20:51:28 -05:00
media.js feat: transition engine — GL wipes across web, Tizen & Android (+ image↔video) (#204) 2026-07-20 16:45:32 -05:00
org-sso.js Close the third QA round: limiter bypass, stored XSS, break-glass, org placement 2026-08-11 11:25:11 -05:00
pip.js Hold overlay pushes to the same write check as every other fleet action 2026-07-30 20:46:03 -05:00
player-debug.js Add player debug overlay and server-side error telemetry sink 2026-05-15 15:20:42 -05:00
playlists.js Default a video playlist item to the clip's own length (#237) 2026-08-06 09:36:53 -05:00
provisioning.js fix(api): consolidate device pairing to /pair, remove vestigial bare endpoint (#90) 2026-06-12 20:13:16 -05:00
reports.js Phase 2.2g: reports.js scoped to workspace_id; fixes pre-existing /export and /uptime cross-tenant leaks 2026-05-11 21:36:54 -05:00
schedules.js Default a video playlist item to the clip's own length (#237) 2026-08-06 09:36:53 -05:00
status.js #240: stop the morning wave buying itself a blocking checkpoint 2026-08-06 20:22:21 -05:00
stripe.js feat(stripe): enable promotion codes on checkout sessions (#227) 2026-07-23 23:44:18 -05:00
subscription.js Initial open source release 2026-04-08 12:14:53 -05:00
teams.js feat(teams): temporarily disable Teams API while feature is redesigned 2026-05-12 13:30:55 -05:00
tokens.js feat(agency): per-token upload folder — auto-created, subtree-confined (#158) (#171) 2026-07-12 21:23:25 -05:00
video-walls.js Describe a portrait video wall as portrait, and stop a wall hiding its screens 2026-08-06 09:46:31 -05:00
white-label.js fix(security): patch quick-win findings from the codebase review 2026-06-08 19:02:19 -05:00
widgets.js Stop shrinking hand-written text widgets into illegibility 2026-07-30 20:28:28 -05:00
workspaces.js Close the third QA round: limiter bypass, stored XSS, break-glass, org placement 2026-08-11 11:25:11 -05:00