osTicket v1.15.4

Enhancements

• Feature: Log Event For Filters (7d48735, 1fd2b6b, 99ec09a)

Improvements

• Issue: Delete Referrals (790c0e6)
• Show "-Empty-" value for empty due dates in ticket view (64712eb)
• Issue: Audit Closed Ticket Events (311a600)

Security

• security: PwReset Username and Username Discoverability (e282910, 86165c2)
• security: SSRF External Images (1c6f98e)
• xss: Stored XSS/Domain Whitelist Bypass (4b4da5b)
• security: Recipient Injection via User's Name (7c5c584)
• xss: Advanced Search (4a8d3c8)
• xss: Tasks (b01c6a2)