Following the 5.01 PS4 WebKit Exploit and 5.50 PS4 WebKit Exploit Rewrite, today @thierry passed along word on Twitter that he ported qwertyoruiop's PlayStation 4 v5.50 Userland Exploit to 5.03 Firmware with details below. 
Download: ps4-5.03-webkit-exploit-master.zip / GIT
To quote from the README.md: PS4 WebKit Exploit for Firmware 5.03
Information
A port of the PS4 5.50 WebKit exploit by qwertyoruiopz. Port possible thanks to the offsets from the 5.01 PoC by Alex and qwertyoruiopz's gadget finder code included in the exploit.
It should work for firmwares 5.01 - 5.05 but the gadget offsets might need to be changed for the other versions.
Changes
Only difference between 5.05 and 5.03 exploit wise, wasted all day rewriting the whole thing just to get this. At least it was a learning experience.
From Pastebin.com: PS4 5.03 Offsets
Download: ps4-5.03-webkit-exploit-master.zip / GIT
To quote from the README.md: PS4 WebKit Exploit for Firmware 5.03
Information
A port of the PS4 5.50 WebKit exploit by qwertyoruiopz. Port possible thanks to the offsets from the 5.01 PoC by Alex and qwertyoruiopz's gadget finder code included in the exploit.
It should work for firmwares 5.01 - 5.05 but the gadget offsets might need to be changed for the other versions.
Changes
- Added a check to not list the current and parent directory directories when browsing the browser directories
Code:
0x5E8024AC -> 0x5E4024ACFrom Pastebin.com: PS4 5.03 Offsets
Code:
#define kdlsym_addr__mtx_lock_flags 0x00401C90
#define kdlsym_addr__mtx_lock_sleep 0x00401D30
#define kdlsym_addr__mtx_unlock_flags 0x00401F60
#define kdlsym_addr__mtx_unlock_sleep 0x00402060
#define kdlsym_addr__sceSblAuthMgrGetSelfInfo 0x0063CD00
#define kdlsym_addr__sx_slock 0x000F5C30
#define kdlsym_addr__sx_sunlock 0x000F5F10
#define kdlsym_addr__sx_xlock 0x000F5E10
#define kdlsym_addr__sx_xunlock 0x000F5FD0
#define kdlsym_addr__vm_map_lock_read 0x0019F140
#define kdlsym_addr__vm_map_unlock_read 0x0019F190
#define kdlsym_addr_AesCbcCfb128Decrypt 0x003A2DC0
#define kdlsym_addr_AesCbcCfb128Encrypt 0x003A2B90
#define kdlsym_addr_allproc 0x02382FF8
#define kdlsym_addr_allproc_lock 0x02382F98
#define kdlsym_addr_copyin 0x001EA710
#define kdlsym_addr_copyinstr 0x001EAB40
#define kdlsym_addr_critical_enter 0x0028E7A0
#define kdlsym_addr_critical_exit 0x0028E7B0
#define kdlsym_addr_dmem_start_app_process 0x002469F0
#define kdlsym_addr_eventhandler_register 0x001EC400
#define kdlsym_addr_exec_new_vmspace 0x0038ACD0
#define kdlsym_addr_faultin 0x00006DD0
#define kdlsym_addr_fget_unlocked 0x000C34B0
#define kdlsym_addr_fpu_kern_ctx 0x0274C040
#define kdlsym_addr_fpu_kern_enter 0x001BFF90
#define kdlsym_addr_fpu_kern_leave 0x001C0090
#define kdlsym_addr_free 0x0010E460
#define kdlsym_addr_gpu_va_page_list 0x0271E208
#define kdlsym_addr_icc_nvs_read 0x003957F0
#define kdlsym_addr_kern_close 0x000C0EC0
#define kdlsym_addr_kern_mkdirat 0x00340B90
#define kdlsym_addr_kern_open 0x0033B970
#define kdlsym_addr_kern_openat 0x0033B9D0
#define kdlsym_addr_kern_readv 0x00153248
#define kdlsym_addr_kern_reboot 0x0010D390
#define kdlsym_addr_kern_sysents 0x0107C610
#define kdlsym_addr_kern_thr_create 0x001BE1F0
#define kdlsym_addr_kernel_map 0x01AC60E0
#define kdlsym_addr_kmem_alloc 0x000FCC80
#define kdlsym_addr_kmem_free 0x000FCE50
#define kdlsym_addr_kproc_create 0x00137DF0
#define kdlsym_addr_kthread_add 0x00138360
#define kdlsym_addr_kthread_exit 0x00138640
#define kdlsym_addr_M_MOUNT 0x019BF300
#define kdlsym_addr_M_TEMP 0x014B4110
#define kdlsym_addr_malloc 0x0010E250
#define kdlsym_addr_memcmp 0x00050AC0
#define kdlsym_addr_memcpy 0x001EA530
#define kdlsym_addr_memmove 0x00073BA0
#define kdlsym_addr_memset 0x00320580
#define kdlsym_addr_mini_syscore_self_binary 0x014C9D48
#define kdlsym_addr_mtx_init 0x00402740
#define kdlsym_addr_mtx_lock_sleep 0x00401D30
#define kdlsym_addr_mtx_unlock_sleep 0x00402060
#define kdlsym_addr_pfind 0x004034A0
#define kdlsym_addr_pmap_activate 0x002EAFD0
#define kdlsym_addr_printf 0x00436000
#define kdlsym_addr_prison0 0x010986A0
#define kdlsym_addr_proc0 0x01AA4600
#define kdlsym_addr_proc_reparent 0x00035330
#define kdlsym_addr_proc_rwmem 0x0030D150
#define kdlsym_addr_realloc 0x0010E590
#define kdlsym_addr_rootvnode 0x022C1A70
#define kdlsym_addr_RsaesPkcs1v15Dec2048CRT 0x001FD7D0
#define kdlsym_addr_sbl_eap_internal_partition_key 0x02790C90
#define kdlsym_addr_sbl_pfs_sx 0x0271E5D8
#define kdlsym_addr_sceSblAuthMgrIsLoadable2 0x0063C4B0
#define kdlsym_addr__sceSblAuthMgrSmStart 0x006418A0
#define kdlsym_addr_sceSblAuthMgrSmVerifyHeader 0x00642B00
#define kdlsym_addr_sceSblAuthMgrVerifyHeader 0x0063C510
#define kdlsym_addr_sceSblDriverSendMsg 0x0061D7B0
#define kdlsym_addr_sceSblGetEAPInternalPartitionKey 0x006256A0
#define kdlsym_addr_sceSblKeymgrClearKey 0x0062DAD0
#define kdlsym_addr_sceSblKeymgrSetKeyForPfs 0x0062D740
#define kdlsym_addr_sceSblKeymgrSmCallfunc 0x0062E260
#define kdlsym_addr_sceSblPfsSetKeys 0x0061EF60
#define kdlsym_addr_sceSblServiceMailbox 0x00632500
#define kdlsym_addr_sceSblACMgrGetPathId 0x000117E0
#define kdlsym_addr_self_orbis_sysvec 0x019BBCD0
#define kdlsym_addr_Sha256Hmac 0x002D55B0
#define kdlsym_addr_snprintf 0x00436310
#define kdlsym_addr_sscanf 0x00175900
#define kdlsym_addr_strcmp 0x001D0FD0
#define kdlsym_addr_strdup 0x001C1C30
#define kdlsym_addr_strlen 0x003B7160
#define kdlsym_addr_strncmp 0x001B8FE0
#define kdlsym_addr_strstr 0x0017DFB0
#define kdlsym_addr_sys_accept 0x0031A130
#define kdlsym_addr_sys_bind 0x003197E0
#define kdlsym_addr_sys_close 0x000C0EB0
#define kdlsym_addr_sys_dup2 0x000BF050
#define kdlsym_addr_sys_fstat 0x000C1430
#define kdlsym_addr_sys_getdents 0x00341350
#define kdlsym_addr_sys_kill 0x000D19D0
#define kdlsym_addr_sys_listen 0x00319A20
#define kdlsym_addr_sys_lseek 0x0033D9B0
#define kdlsym_addr_sys_mkdir 0x00340B10
#define kdlsym_addr_sys_mlock 0x0013E250
#define kdlsym_addr_sys_mlockall 0x0013E300
#define kdlsym_addr_sys_mmap 0x0013D230
#define kdlsym_addr_sys_munmap 0x0013D9A0
#define kdlsym_addr_sys_nmount 0x001DE2E0
#define kdlsym_addr_sys_open 0x0033B950
#define kdlsym_addr_sys_ptrace 0x0030D5E0
#define kdlsym_addr_sys_read 0x00152AB0
#define kdlsym_addr_sys_recvfrom 0x0031B420
#define kdlsym_addr_sys_rmdir 0x00340E90
#define kdlsym_addr_sys_sendto 0x0031ACD0
#define kdlsym_addr_sys_setuid 0x00054950
#define kdlsym_addr_sys_shutdown 0x0031B660
#define kdlsym_addr_sys_socket 0x00318EA0
#define kdlsym_addr_sys_stat 0x0033DFA0
#define kdlsym_addr_sys_unlink 0x0033D390
#define kdlsym_addr_sys_unmount 0x001DFC70
#define kdlsym_addr_sys_wait4 0x00035470
#define kdlsym_addr_sys_write 0x00152FC0
#define kdlsym_addr_trap_fatal 0x00171580
#define kdlsym_addr_utilUSleep 0x00658BF0
#define kdlsym_addr_vm_map_lookup_entry 0x0019F760
#define kdlsym_addr_vmspace_acquire_ref 0x0019EF90
#define kdlsym_addr_vmspace_alloc 0x0019EB20
#define kdlsym_addr_vmspace_free 0x0019EDC0
#define kdlsym_addr_vsnprintf 0x004363B0
#define kdlsym_addr_Xfast_syscall 0x000001C0
#define kdlsym_addr_wakeup 0x003FB940
#define kdlsym_addr_avcontrol_sleep 0x006EAF70
#define kdlsym_addr_eventhandler_deregister 0x001EC790
#define kdlsym_addr_eventhandler_find_list 0x001EC980
#define kdlsym_addr_kern_ioctl 0x00153990
#define kdlsym_addr_sceSblRngGetRandomNumber 0x00657A10
#define kdlsym_addr_vm_fault_disable_pagefaults 0x002A6C20
#define kdlsym_addr_vm_fault_enable_pagefaults 0x002A6C50
#define kdlsym_addr_gdt 0x01CB90F0
#define kdlsym_addr_destroy_dev 0x001B9D50
#define kdlsym_addr_make_dev_p 0x001B9810
#define kdlsym_addr_kproc_exit 0x00138060
// FakeSelf hooks
#define kdlsym_addr_sceSblAuthMgrIsLoadable__sceSblACMgrGetPathId_hook 0x0063E21D
#define kdlsym_addr_sceSblAuthMgrIsLoadable2_hook 0x0063E361
#define kdlsym_addr_sceSblAuthMgrSmLoadSelfSegment__sceSblServiceMailbox_hook 0x0064314B
#define kdlsym_addr_sceSblAuthMgrSmLoadSelfBlock__sceSblServiceMailbox_hook 0x00643D62
#define kdlsym_addr_sceSblAuthMgrVerifyHeader_hookA 0x0063EABC
#define kdlsym_addr_sceSblAuthMgrVerifyHeader_hookB 0x0063F6D8
// FakePkg hooks
#define kdlsym_addr_sceSblKeymgrSetKeyStorage__sceSblDriverSendMsg_hook 0x00624025
#define kdlsym_addr_sceSblKeymgrInvalidateKey__sx_xlock_hook 0x0062E92D
#define kdlsym_addr_npdrm_decrypt_isolated_rif__sceSblKeymgrSmCallfunc_hook 0x0064C6E0
#define kdlsym_addr_npdrm_decrypt_rif_new__sceSblKeymgrSmCallfunc_hook 0x0064D4BF
#define kdlsym_addr_mountpfs__sceSblPfsSetKeys_hookA 0x006AAA95
#define kdlsym_addr_mountpfs__sceSblPfsSetKeys_hookB 0x006AACC4
// SceShellCore patches - call sceKernelIsGenuineCEX
#define ssc_sceKernelIsGenuineCEX_patchA 0x0017F4DB
#define ssc_sceKernelIsGenuineCEX_patchB 0x0079FF6B
#define ssc_sceKernelIsGenuineCEX_patchC 0x007EC173
#define ssc_sceKernelIsGenuineCEX_patchD 0x0095068B
// SceShellCore patches - call nidf_libSceDipsw
#define ssc_nidf_libSceDipsw_patchA 0x00175007
#define ssc_nidf_libSceDipsw_patchB 0x0023C8DB
#define ssc_nidf_libSceDipsw_patchC 0x0079FF97
#define ssc_nidf_libSceDipsw_patchD 0x009506B7
#define ssc_enable_fakepkg_patch 0x003E55E2
// SceShellCore patches - use free prefix instead fake
#define ssc_fake_to_free_patch 0x00EB21A7
