- detectAllHeaderSets() finds multiple header groups per row (left 1st / right 15th)
- isBlankRowForHeaderSet() checks blanks per column range for dual layouts
- parseSheetRows() scans rows 0-4 for header row, processes each set independently
- analyzeRow() computes due_day from date/label/pattern with fallback to defaultDueDay
- Cell type validation allows 's' (shared formula) type
- Non-numeric amounts (auto, double pay, past due) become detected labels
- Day patterns (1st, 15th, 24th) parsed as due_day values
- Security: bounds validation in isBlankRowForHeaderSet, anchored regex, label sanitization
CRITICAL security fix: In per-user notification mode, the notification runner
was fetching ALL active bills globally and sending each bill's details to
every opted-in recipient regardless of ownership. This meant User A's bill
names, amounts, and due dates could be emailed to User B.
Fix: Added ownership filter in the recipient loop:
if (allowUserConfig && bill.user_id !== recipient.id) continue;
Also added a defensive guard for bills with no user_id (orphaned bills),
which are now skipped with a console.warn instead of being broadcast.
Global notification mode (single admin recipient) is unaffected.
Security audit: Private_Hudson confirmed the fix is airtight. All other
routes (bills, payments, tracker, analytics, export, calendar, summary,
categories) properly scope data by user_id.
Version bump: 0.23.1 → 0.23.2 (security patch)
- invalidateOtherSessions() in authService.js: deletes all sessions except current
- Password change (auth.js + profile.js) now invalidates all other sessions
- Password change rotates current session ID (sets new cookie)
- New POST /api/auth/logout-all endpoint (deletes all sessions + clears cookie)
- Audit logging for logout.all and password.change
- Added last_password_change_at to auth.js change-password for consistency
- Hudson security audit: 6/6 PASS
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