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CVE-2023-35925

FastAsyncWorldEdit vulnerable to Uncontrolled Resource Consumption

6.2 MediumFix available

FastAsyncWorldEdit (FAWE) is designed for efficient world editing. This vulnerability enables the attacker to select a region with the Infinity keyword (case-sensitive!) and executes any operation. This has a possibility of bringing the performing server down. This issue has been fixed in version 2.6.3.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.31%Up 0.3 points since Jun 24, 2023
90%50%10%1%

What each source reports

CVE List Score used 6.2

FastAsyncWorldEdit vulnerable to Uncontrolled Resource Consumption

FastAsyncWorldEdit (FAWE) is designed for efficient world editing. This vulnerability enables the attacker to select a region with the Infinity keyword (case-sensitive!) and executes any operation. This has a possibility of bringing the performing server down. This issue has been fixed in version 2.6.3.

Record
CVE-2023-35925
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
EUVDEUVD-2023-1901 6.2

FastAsyncWorldEdit (FAWE) is designed for efficient world editing. This vulnerability enables the attacker to select a region with the Infinity keyword (case-sensitive!) and executes any operation. This has a possibility of bringing the performing server down. This issue has been fixed in version 2.6.3.

Record
EUVD-2023-1901
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-whj9-m24x-qhhp 6.2

FastAsyncWorldEdit vulnerable to Uncontrolled Resource Consumption

Coordinated Disclosure Timeline

  • 10.06.2023: Issue reported to IntellectualSites
  • 11.06.2023: Issue is acknowledged
  • 12.06.2023: Issue has been fixed
  • 22.06.2023: Advisory has been published

Impacted version range

Before 2.6.3

Details

Proof of Concept

As a user, do the following:

  1. Select position 1 via //pos1
  2. Select position 2 adding the "Infinity" keyword via //pos2 Infinity
  3. Execute any further operation.

The steps 1 and 2 are interchangeable.

Impact

Such a task has a possibility of bringing the performing server down.

CVE

  • CVE-2023-35925

Credit

This issue was discovered and reported by @SuperMonis.

Solution

On June 12, 2023, a patch, https://github.com/IntellectualSites/FastAsyncWorldEdit/pull/2285, has been merged addressing the vulnerability. We strongly recommend users to update their version of FastAsyncWorldEdit to 2.6.3 as soon as possible.

Workarounds

There is no direct mitigation besides updating FastAsyncWorldEdit to a patched version.

Additional Information

Users with access to the logs/ folder or shell access on their server can try to identify possible abuses of this issue by going through the logs. To sieve through the data, you can use the regex query \/\/pos[12] Infinity, then investigate all log entries that return results.

Disclosure Policy

If you discover a security vulnerability within our software, please report the issue according to our vulnerability disclosure policy.

Record
GHSA-whj9-m24x-qhhp
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
NVD 6.2

FastAsyncWorldEdit (FAWE) is designed for efficient world editing. This vulnerability enables the attacker to select a region with the Infinity keyword (case-sensitive!) and executes any operation. This has a possibility of bringing the performing server down. This issue has been fixed in version 2.6.3.

Record
CVE-2023-35925
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSV 6.2

FastAsyncWorldEdit vulnerable to Uncontrolled Resource Consumption

FastAsyncWorldEdit (FAWE) is designed for efficient world editing. This vulnerability enables the attacker to select a region with the Infinity keyword (case-sensitive!) and executes any operation. This has a possibility of bringing the performing server down. This issue has been fixed in version 2.6.3.

Record
CVE-2023-35925
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVGHSA-whj9-m24x-qhhp 6.2

FastAsyncWorldEdit vulnerable to Uncontrolled Resource Consumption

Coordinated Disclosure Timeline

  • 10.06.2023: Issue reported to IntellectualSites
  • 11.06.2023: Issue is acknowledged
  • 12.06.2023: Issue has been fixed
  • 22.06.2023: Advisory has been published

Impacted version range

Before 2.6.3

Details

Proof of Concept

As a user, do the following:

  1. Select position 1 via //pos1
  2. Select position 2 adding the "Infinity" keyword via //pos2 Infinity
  3. Execute any further operation.

The steps 1 and 2 are interchangeable.

Impact

Such a task has a possibility of bringing the performing server down.

CVE

  • CVE-2023-35925

Credit

This issue was discovered and reported by @SuperMonis.

Solution

On June 12, 2023, a patch, https://github.com/IntellectualSites/FastAsyncWorldEdit/pull/2285, has been merged addressing the vulnerability. We strongly recommend users to update their version of FastAsyncWorldEdit to 2.6.3 as soon as possible.

Workarounds

There is no direct mitigation besides updating FastAsyncWorldEdit to a patched version.

Additional Information

Users with access to the logs/ folder or shell access on their server can try to identify possible abuses of this issue by going through the logs. To sieve through the data, you can use the regex query \/\/pos[12] Infinity, then investigate all log entries that return results.

Disclosure Policy

If you discover a security vulnerability within our software, please report the issue according to our vulnerability disclosure policy.

Record
GHSA-whj9-m24x-qhhp
CVSS 3.1
6.2 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
com.fastasyncworldedit:FastAsyncWorldEdit-Core
Maven
 before 2.6.3
2.6.3
com.fastasyncworldedit:FastAsyncWorldEdit-Bukkit
Maven
 before 2.6.3
2.6.3
com.fastasyncworldedit:FastAsyncWorldEdit-Core
Maven
 before 2.6.3, plus listed versions
2.0.02.0.12.1.02.1.12.1.2
Show 18 moreShow less
2.2.02.3.02.4.02.4.12.4.102.4.22.4.32.4.42.4.52.4.72.4.82.4.92.5.02.5.12.5.22.6.02.6.12.6.2
2.6.3
com.fastasyncworldedit:FastAsyncWorldEdit-Bukkit
Maven
 before 2.6.3, plus listed versions
2.0.02.0.12.1.02.1.12.1.2
Show 18 moreShow less
2.2.02.3.02.4.02.4.12.4.102.4.22.4.32.4.42.4.52.4.72.4.82.4.92.5.02.5.12.5.22.6.02.6.12.6.2
2.6.3

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-35925 is a medium vulnerability (CVSS 6.2) in Intellectualsites Fastasyncworldedit, published June 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 23rd percentile. Fixed in com.fastasyncworldedit:FastAsyncWorldEdit-Core 2.6.3.

References

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