CVE-2021-48006 json
PocketMine-MP before 4.0.3 Operator Privilege Escalation via Case Sensitivity
published 2021-12-16 4 y ago modified 2026-10-08 31 d ago also GHSA-j5qg-w9jg-3wg3 , EUVD-2021-34876
- cvss
- 3.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
PocketMine-MP before 4.0.3 does not perform case-insensitive matching when removing operator entries from ops.txt. The removeOp function lowercases the supplied name but only removes an exactly matching entry, so an operator name stored with non-lowercase letters cannot be revoked using the deop command, leaving the player as an operator until the entry is removed from ops.txt manually.
Patch / fix
- packagist pocketmine/pocketmine-mp 4.0.3
- pmmp PocketMine-MP 4.0.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 51 d ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 4.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| CNA | 4.0 | 4.8 | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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 | 3.3 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | pocketmine/pocketmine-mp | <4.0.3 |
4.0.3 |
Affected products
- pmmp PocketMine-MP
Classification
- Weakness
-
- CWE-178 Improper Handling of Case Sensitivity
References
-
github.com
/pmmp/PocketMine-MP/commit/4d37b79ff7f9d9452e988387f97919a9a1c4954e
patch, web
-
github.com
/pmmp/PocketMine-MP/security/advisories/GHSA-j5qg-w9jg-3wg3
vendor-advisory, web
-
vulncheck.com
/advisories/pocketmine-mp-before-4.0.3-operator-privilege-escalation-via-case-sensitivity
third-party-advisory
-
github.com
/iTXTech/Genisys/issues/1188
web
-
github.com
/pmmp/PocketMine-MP
package
-
github.com
/pmmp/PocketMine-MP/blob/4.0.3/changelogs/4.0.md#403
web
Sources
- CVE List CVE-2021-48006
- GitHub Advisory GHSA-j5qg-w9jg-3wg3
- NVD CVE-2021-48006
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