PSFree WebKit Exploit for PS4, QuickHEN, Lua Lapse PS4 / PS5 Kernel Exploit & Laps3c0re / Y2JB

This weekend PS4 Scene developer @CelesteBlue announced on Twitter news of a PSFree WebKit Exploit for PS4 6.00 to 9.60 crediting Sergei Glazunov and Maddie Stone (Twitter) of Project Zero for discovering the vulnerability, anonymous for writing the PSFree Exploit and himself for testing, porting and improvements alongside a QuickHEN PS4 collection incoming of WebKit exploits for PlayStation 4 System Software versions between 3.15 and 9.60 with Kernel exploits between 3.15 and 9.00 only albeit requiring more work and Laps3c0re which is a port of the Lapse kernel exploit implementation by abc using Mast1c0re by McCaulay as an entry point and Y2JB Userland code execution by Gezine using the PS5 YouTube (USA) app v1.03 PKG crediting Remote_Lua_Loader.

Download: psfree-1.2.0.zip (39.93 KB) / GIT / PSFree Exploit (Live Demo) via @zecoxao on Twitter / psfree-beta2.7z (16.34 KB) via abc for 8.0x / psfree-beta3.7z (24.60 KB) via abc / PSFree Beta 3 Version (Live Demo) via Kameleonre_ / psfree-1.3.0.7z (30.30 KB) via abc / psfree-beta-140.7z (37.05 KB) via abc / PS5 Kernel Exploit 3.xx-4.xx (PSFree Integrated Live Demo) / PS5 Exploit Host via idlesauce / PSFree900-main.zip / PSFree900 GIT / PSFree 9.00 FW (Live Demo) via Kameleonre_ / 9.00 FW PSFree with GoldHEN (Live Demo) via ps3120 / 6.72 FW PSFree with GoldHEN via ps3120 / psfree-beta3-140.7z (37.92 KB) via abc / psfree-beta4-140.7z (37.93 KB) via abc / psfree700-main.zip (36.1 KB) / PSFree 7.02 FW via Kameleonre_ / psfree-150b.7z (171.98 KB) by abc via master_s9 / PS5-UMTX-Jailbreak-psfree-150b.zip / GIT Fork via idlesauce / psfree-1.5rc1.7z (193.33 KB) via abc / Mirror

• PS4/PS5 exploit using CVE-2022-22620
• PS4 versions vulnerable: 6.xx-9.xx (tested 6.50-9.60)
• PS5 versions vulnerable: 1.xx-5.xx (tested 1.00-5.50)
• Lapse kernel exploit (based on aio_multi_delete vulnerability Bug Patched on 12.50 PS4) for PS4 5.00-12.50 / PS5 1.00-10.20
• PSFree: A PS4 / PS5 Exploit Chain (Lapse Exploit Live Demo) via @zecoxao aka notnotzecoxao on X
• PSFree Lapse GIT (Fork) by Al-Azif / psfree-lapse.zip (298 KB - Mirror) via @Al Azif aka _AlAzif on X
• psfree_lapse-main.zip (psfree_lapse Latest Version) via Feyzee61 (aka FevziZengin61 on X) / PSFree Lapse GIT (Fork)
• LUA-Lapse (Fork) via @egycnq (egycnq aka egycnq on X)
• hen-1000-1202.bin (10.00-12.02 HEN, includes hen-1000.bin / hen-1001.bin / hen-1050.bin / hen-1070-1071.bin / hen-1100.bin / hen-1102.bin / hen-1150-1152.bin / hen-1200-1202.bin) via @Al Azif aka _AlAzif on X / PS4 HEN (Scene Collective Github)
• laps3c0re-1.01.zip (Latest Version) of Laps3c0re / laps3c0re GIT (Lapse + Mast1c0re) via iMrDJAi aka Djamel
• Y2JB_backup_1.2.1.zip / Y2JB_download0_1.2.1.zip (Latest Version) of Y2JB / Y2JB GIT / BD-JB-1250 GIT (BD-JB for up to PS4 12.50) via Gezine (Sponsor) aka gezine_dev / Y2JB Remote JS Loader (Latest Version) / Y2JB Remote JS Loader GIT Fork via @master s9 (aka MasterPS0 / master_s9) / ps5_y2jb_autoloader (Latest Version) via itsPLK (Sponsor) / PS5 Y2JB Autoloader GIT Fork (Automated payload loader for exploited PS5 consoles)
• PS5 Netflix-N-Hack (Latest Version) by earthonion (Sponsor) / GIT (Inject custom JavaScript into the Netflix PS5 error screen by intercepting Netflix's requests to localhost)
• HenLoader LP (Lapse (9.00-12.02) + Poops (9.00-12.52) exploit)
• Lapse_1.2_Mod.iso / Poops.iso (Latest Version) / Lapse_1.2_MOD (GIT Fork) via ps3120 on X Post
• Luac0re_2.2.zip / Luac0re 2.2 (GIT) (Luac0re is a mast1c0re variation that uses Lua scripting for easier exploit development) / BD-UN-JB 1.1 (Latest Version) (includes BD-UN-JB_1.1.iso, bdj_unpatch_1320.elf, poops_1.2.jar) / BD-UN-JB (GIT) (BD-JB for already jailbroken PS5) via Gezine
• BD-JB-Poops.iso (16 MB - PS5 Poops Autoloader iSO) via ps3120

This comes proceeding the PS4 NoBD: BD Driveless Updating & No BD Updater Payloads / PS4 NoBD Toolkit, HDD_Script.py to Retrieve Data from Any PS4 Console via SFlash Dump, PS4 CR0.WP Protection Kernel Security Bypass and pOOBs4: PS4 9.00 Jailbreak Exploit via ChendoChap with Updated Payloads previously released.

Here's further details from the included README.txt: PSFree version 1.2.0

PSFree is a WebKit exploit using CVE-2022-22620 to gain arbitrary read/write.

This exploit was initially for the PS4 firmware version 8.03. CelesteBlue has tested and confirmed that the original works on 7.00-8.52 and helped in making the patches for 6.00-6.72, 9.00-9.60, and PS5 1.00-5.50.

CREDITS:

• CelesteBlue from ps4-dev on discord.com for testing and porting to other firmwares
• Quentin Meffre (0xdagger) and Mehdi Talbi (abu_y0ussef) for the 6.xx buildBubbleTree() UaF exploit that served as the framework for this exploit
• Maddie Stone for the CVE writeup

Notes on reimplementing this project and testing on firmwares != 8.03:

• num_reuse and num_str must be changed if the proof-of-concept is failing
• 6.xx firmwares need a setTimeout() after a gc() for garbage collection to work. The duration may also need changing.

These values are at exploit.mjs. This implementation was tested on 8.03.

The values are implementation dependent. Even if you are on the same firmware and you test 2 different implementations, you may need to change the values.

For example, if you reimplement the project with setTimeout() callbacks instead of using Promises, even if you are on 8.03, you may need different values.

Changelog:

1.2.0:

• add support for PS4 6.00-6.20

1.1.0:

• add support for running ROP chains (PS4 8.03)
• add support for calling syscalls (PS4 8.03)

1.0.0 changelog:

• add proof-of-concept code to gain arbitrary read/write (PS4 6.50-9.60/PS5 1.00-5.50)

OLD README:

PSFree is a WebKit exploit using CVE-2022-22620 to gain arbitrary read/write.

This exploit is for the PS4 firmware version 8.03

Porting to other firmware versions:

The only non-portable parts of the exploit (assuming the firmware is vulnerable) are:

1. the size of SerializedScriptValue and the offsets of its fields
2. how to achieve an arbitrary decrement primitive

There also other objects used by this exploit such as StringImpl. They too are also subject to change between different firmware versions but are very stable hence why we did not list them.

Number 2 is used to corrupt the length of the JSArrayBufferView. This exploit manipulated the destructor ~SerializedScriptValue() to achieve the wanted result.

There is possibly a restricted free primitive via repeatedly corrupting any object that gets allocated at a JSArrayBufferView and changing its contents so that is frees another object.

For example you could modify a StringImpl to have its data pointer point to a target address and set its BufferOwnership to BufferOwned and have it destroyed.

The primitive is restricted as you can only fastFree() addresses known by the fastMalloc allocator. This means an address on the fastMalloc heap, regardless of whether it is free or not.

This means you can recreate any previous fastMalloc use-after-free exploit.

Spoiler: Related Tweets

 

[brodjo]

Small piece of advice for anyone trying to get the PS5 with a hackable firmware. I ordered a GoW bundle and it came with 7.61 Firmware version. So maybe consider finding some older bundles on Amazon Warehouse and give it a try, if the console has an updated software, it should be rather easy to take back it as they do not create problems with returns.

 

[Gimpchop]

Hello to everyone. I currently have a ps4 on fw 11.00 and us the blu-ray disc lapse exploit, is there any point in me updating to 12.00 or 12.52 and using the poop exploit or am I best of sticking to 11.00. thanks

 

[rheumatix]

Hey @Gimpchop, in my opinion stick with 11.00 if the blu-ray disc exploit works without issue. I have 12.50 and only occasionally the exploit fails and I had to restart the PS4 several times and retry, but once successful I just put it in Rest Mode when done playing.

I purchased my PS4 Pro from a used items store chain called Bookoff in Japan in April 2025, and it was really hard to get a PS4 Pro with firmware lower than 12.50. I'm so grateful for the latest Blu-ray disc exploit being released, as now I can play my favorite PS4 games again.

 

[Gimpchop]

hi @rheumatix, Thanks for the reply I'm also looking for a ps4 pro with low firmware. So am i right in thinking the 12.50 blu-ray disc exploit isn't as stable as the 11.00? or is it that the ps4pro is slightly different causing it to require more attempts to get a successful jailbreak?.

 

[MateD97]

I have bought a PS4 PRO almost a half year ago and it was on 12.50 FW and I was very disappointed when saw that it is not possible to jaillbreak it then. I really wanted to play games like TLOU and Crash Bandicoot to experience PS gameplay because I'm PC gamer and have never owned any PS.

I've finally jaillbroken my PS4 12.52 FW version with newest exploit and I'm so happy about it. Big thanks for all this stuff.

 

[yntrian]

I've recently set up my PS4 Slim on firmware 9.00 using PSFree and Lapse, and really want to play some new backported games.. specifically EA Sports FC 26 since I'm currently building up my archive of offline sports titles on this firmware. It's reassuring to see such reliable releases from community!

 

[Gimpchop]

Yes it's very exciting times for PS4 owners with lots of news in the JB scene. Can't wait to see what they do next. I believe a jb for 13.00 is on the horizon but take it with a grain of salt as it's not confirmed.

 

[danroc01]

There has been such a crazy amount of work put in by a few dev's over the last few months that the PS5 JB scene has just exploded. I was a very early PS4 JB adopter, back with hardware JTAGs, have had a PS4 and PS4 Pro JB consoles for years, but with life getting busy, just stopped gaming.

Now with my kids looking to game my interest was peaked when I saw that first Y2JB release. Just purchsed a Lua compatible console that santa will be delivering to the little ones. Updating it with Y2JB and autoloader tonight. Great to see new releases coming in every month, keep up the good work.

 

[djdino22]

I'm currently on PS5 (digital) 7.61, and I jailbroken it with YT JB, now I want to play more games, but many (like Wukong or Silent Hill 2) require higher FW. I don't know if is better to wait newer form of JB and maybe backports or update the console and risk a more instable JB but with the chance to play my games.

 

[turnip]

@djdino22 Black Myth Wukong is playable on 9.60+, and Y2JB + Lapse + Kstuff now, works all the way to 10.01. So you could just update to 9.60 and play it.

Silent Hill 2 is playable on 10.01, so you can upgrade to that version as well, while keeping your jailbreak.

However, I'd wait to see what exploits are shown at the 39c3 conference at the end of December in pAMDora's box by Tihmstar.