CVE-2023-54393 json
PocketMine-MP before 4.20.5 Denial of Service via LoginPacket
published 2023-06-06 3 y ago modified 2026-10-08 32 d ago also GHSA-pqp3-8rrw-g8vm , EUVD-2023-60623
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
PocketMine-MP versions before 4.20.5 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper validation in the JsonMapper dependency. Attackers can send malformed JSON structures in LoginPacket to crash the server.
Patch / fix
- packagist pocketmine/pocketmine-mp 4.20.5, 4.21.1
- pmmp PocketMine-MP 4.20.5, 4.21.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 56 d ago
Exploit prediction
0.63% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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 |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | pocketmine/pocketmine-mp | <4.20.5 >=4.21.0, <4.21.1 |
4.20.5 4.21.1 |
Affected products
- pmmp PocketMine-MP
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/pmmp/PocketMine-MP/commit/a31902a31f5b6fdb832f57c0e3a3f16a3b41c012
patch
-
github.com
/pmmp/PocketMine-MP/commit/09668a37d66c6023685a948b7550c918620e98f2
patch, web
-
github.com
/cweiske/jsonmapper/pull/210
web
-
github.com
/pmmp/netresearch-jsonmapper/commit/a31902a31f5b6fdb832f57c0e3a3f16a3b41c012
web
-
github.com
/pmmp/PocketMine-MP/security/advisories/GHSA-pqp3-8rrw-g8vm
vendor-advisory, web
-
vulncheck.com
/advisories/pocketmine-mp-before-4.20.5-denial-of-service-via-loginpacket
third-party-advisory
-
github.com
/pmmp/PocketMine-MP
package
Sources
- CVE List CVE-2023-54393
- GitHub Advisory GHSA-pqp3-8rrw-g8vm
- NVD CVE-2023-54393
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