{"id":"CVE-2023-54395","aliases":["EUVD-2023-60625","GHSA-3vjv-jh7h-xv9f","GHSA-7m9r-rq9j-wmmh"],"status":"published","title":"PocketMine-MP before 4.12.5 Denial of Service via ModalFormResponsePacket","description":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00451,"percentile":0.39651,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-407"],"published":"2023-01-10T00:41:43Z","modified":"2026-10-28T02:30:33Z","fixes":[{"ecosystem":"Packagist","package":"pocketmine/pocketmine-mp","fixed_in":["4.12.5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"pocketmine/pocketmine-mp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.5"}]}]},{"source":"osv","ecosystem":"Packagist","package":"pocketmine/pocketmine-mp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.5"}]}],"versions":["3.0.0","3.0.1","3.0.10","3.0.11","3.0.12","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.1.8","3.10.0","3.10.1","3.11.0","3.11.1","3.11.2","3.11.3","3.11.4","3.11.5","3.11.6","3.11.7","3.12.0","3.12.1","3.12.2","3.12.3","3.12.4","3.12.5","3.12.6","3.13.0","3.13.1","3.14.0","3.14.1","3.14.2","3.14.3","3.15.0","3.15.1","3.15.2","3.15.3","3.15.4","3.16.0","3.16.1","3.17.0","3.17.1","3.17.2","3.17.3","3.17.4","3.17.5","3.17.6","3.17.7","3.18.0","3.18.1","3.18.2","3.19.0","3.19.1","3.19.2","3.19.3","3.2.0","3.2.1","3.2.2","3.2.3","3.2.4","3.2.5","3.2.6","3.2.7","3.20.0","3.21.0","3.21.1","3.22.0","3.22.1","3.22.2","3.22.3","3.22.4","3.22.5","3.23.0","3.23.1","3.24.0","3.25.0","3.25.1","3.25.2","3.25.3","3.25.4","3.25.5","3.25.6","3.26.0","3.26.1","3.26.2","3.26.3","3.26.4","3.26.5","3.27.0","3.28.0","3.3.0","3.3.1","3.3.2","3.3.3","3.3.4","3.4.0","3.4.1","3.4.2","3.4.3","3.5.0","3.5.1","3.5.10","3.5.11","3.5.12","3.5.13","3.5.2","3.5.3","3.5.4","3.5.5","3.5.6","3.5.7","3.5.8","3.5.9","3.6.0","3.6.1","3.6.2","3.6.3","3.6.4","3.6.5","3.6.6","3.7.0","3.7.1","3.7.2","3.7.3","3.8.0","3.8.1","3.8.2","3.8.3","3.8.4","3.8.5","3.8.6","3.8.7","3.9.0","3.9.1","3.9.2","3.9.3","3.9.4","3.9.5","3.9.6","3.9.7","3.9.8","4.0.0","4.0.0-BETA1","4.0.0-BETA10","4.0.0-BETA11","4.0.0-BETA12","4.0.0-BETA13","4.0.0-BETA14","4.0.0-BETA15","4.0.0-BETA2","4.0.0-BETA3","4.0.0-BETA4","4.0.0-BETA5","4.0.0-BETA6","4.0.0-BETA7","4.0.0-BETA8","4.0.0-BETA9","4.0.1","4.0.2","4.0.3","4.0.4","4.0.5","4.0.6","4.0.7","4.0.8","4.0.9","4.1.0","4.1.0-BETA1","4.1.0-BETA2","4.10.0","4.10.1","4.10.2","4.11.0","4.11.0-BETA1","4.11.0-BETA2","4.12.0","4.12.1","4.12.2","4.12.3","4.12.4","4.2.0","4.2.1","4.2.10","4.2.2","4.2.3","4.2.4","4.2.5","4.2.6","4.2.7","4.2.8","4.2.9","4.3.0","4.3.1","4.3.2","4.3.3","4.3.4","4.4.0","4.4.0-BETA1","4.4.1","4.4.2","4.5.0","4.5.1","4.5.2","4.6.0","4.6.1","4.6.2","4.7.0","4.7.1","4.7.2","4.7.3","4.8.0","4.8.1","4.9.0","4.9.1"]}],"products":[{"vendor":"pmmp","product":"pocketmine-mp"}],"references":[{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-7m9r-rq9j-wmmh","tags":["vendor-advisory","advisory","web"]},{"url":"https://github.com/pmmp/PocketMine-MP/commit/3baa5ab71214f96e6e7ab12cb9beef08118473b5","tags":["patch","fix"]},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-4.12.5-denial-of-service-via-modalformresponsepacket","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54395","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3vjv-jh7h-xv9f"},{"url":"https://github.com/advisories/GHSA-7m9r-rq9j-wmmh"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54395.json","tags":["advisory"]},{"url":"https://github.com/pmmp/PocketMine-MP","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-54395","title":"PocketMine-MP before 4.12.5 Denial of Service via ModalFormResponsePacket","description":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.","status":"published","published":"2026-09-09T13:31:53.472Z","modified":"2026-10-08T15:21:08.469Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T14:35:15.066338Z"}],"euvd":[{"id":"EUVD-2023-60625","description":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.","status":"published","published":"2026-09-09T13:31:53Z","modified":"2026-10-08T15:21:08Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T17:27:32.18003Z"}],"ghsa":[{"id":"GHSA-3vjv-jh7h-xv9f","title":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in...","description":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.","status":"published","published":"2026-09-09T15:35:10Z","modified":"2026-09-09T15:35:10Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T15:11:38.712835Z"},{"id":"GHSA-7m9r-rq9j-wmmh","title":"PocketMine-MP vulnerable to denial-of-service by sending large modal form responses","description":"### Impact\nDue to a workaround for an old client bug (which has since been fixed), very large JSON payloads in `ModalFormResponsePacket` were able to cause the server to spend a significant amount of time processing the packet. Large numbers of these packets were able to hog CPU time so as to prevent the server from processing other connections in a timely manner.\n\n### Patches\nThe problem has been addressed in 3baa5ab71214f96e6e7ab12cb9beef08118473b5 by removing the workaround code.\n\n### Workarounds\nPlugins could cancel `DataPacketReceiveEvent` for this packet, decode the data their way, and then call `Player-\u003eonFormSubmit()` directly, bypassing the vulnerable code.","status":"published","published":"2023-01-10T00:41:43Z","modified":"2023-01-13T16:49:41Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T14:36:14.033357Z"}],"nvd":[{"id":"CVE-2023-54395","description":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.","status":"published","published":"2026-09-09T14:17:09.74Z","modified":"2026-10-08T16:16:48.323Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T14:09:27.733183Z"}],"osv":[{"id":"CVE-2023-54395","title":"PocketMine-MP before 4.12.5 Denial of Service via ModalFormResponsePacket","description":"PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.","status":"published","published":"2026-09-09T13:31:53.472Z","modified":"2026-10-28T02:30:33.411922588Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-407"],"updated_at":"2026-11-02T15:44:36.851042Z"},{"id":"GHSA-7m9r-rq9j-wmmh","title":"PocketMine-MP vulnerable to denial-of-service by sending large modal form responses","description":"### Impact\nDue to a workaround for an old client bug (which has since been fixed), very large JSON payloads in `ModalFormResponsePacket` were able to cause the server to spend a significant amount of time processing the packet. Large numbers of these packets were able to hog CPU time so as to prevent the server from processing other connections in a timely manner.\n\n### Patches\nThe problem has been addressed in 3baa5ab71214f96e6e7ab12cb9beef08118473b5 by removing the workaround code.\n\n### Workarounds\nPlugins could cancel `DataPacketReceiveEvent` for this packet, decode the data their way, and then call `Player-\u003eonFormSubmit()` directly, bypassing the vulnerable code.","status":"published","published":"2023-01-10T00:41:43Z","modified":"2026-09-10T03:56:07.799051353Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:46:41.349637Z"}]}}