How severe is CVE-2022-39221?

CVE-2022-39221 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-39221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-39221?

CVE-2022-39221 primarily affects Mcwebserver Minecraft Mod For Fabric And Quilt Project Mcwebserver Minecraft Mod For Fabric And Quilt. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-39221?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-39221 published?

CVE-2022-39221 was published on 2022-09-21 and last updated on 2026-06-17.

CVE-2022-39221

CVE-2022-39221 is a high-severity vulnerability in Mcwebserver Minecraft Mod For Fabric And Quilt Project Mcwebserver Minecraft Mod For Fabric And Quilt with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Mcwebserver Minecraft Mod For Fabric And Quilt Project Mcwebserver Minecraft Mod For Fabric And Quilt
Published: 2022-09-21
Last modified: 2026-06-17

Description

McWebserver mod runs a simple HTTP server alongside the Minecraft server in seperate threads. Path traversal in McWebserver Minecraft Mod for Fabric and Quilt up to and including 0.1.2.1 and McWebserver Minecraft Mod for Forge up to and including 0.1.1 allows all files, accessible by the program, to be read by anyone via HTTP request. Version 0.2.0 with patches are released to both platforms (Fabric and Quilt, Forge). As a workaround, the McWebserver mod can be disabled by removing the file from the `mods` directory.

Frequently asked questions

What is CVE-2022-39221?: McWebserver mod runs a simple HTTP server alongside the Minecraft server in seperate threads. Path traversal in McWebserver Minecraft Mod for Fabric and Quilt up to and including 0.1.2.1 and McWebserver Minecraft Mod for Forge up to and including 0.1.1 allows all files, accessible by the program, to be read by anyone via HTTP request. Version 0.2.0 with patches are released to both platforms (Fabric and Quilt, Forge). As a workaround, the McWebserver mod can be disabled by removing the file from the `mods` directory.
How severe is CVE-2022-39221?: CVE-2022-39221 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-39221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-39221?: CVE-2022-39221 primarily affects Mcwebserver Minecraft Mod For Fabric And Quilt Project Mcwebserver Minecraft Mod For Fabric And Quilt. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-39221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-39221 published?: CVE-2022-39221 was published on 2022-09-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:mcwebserver_minecraft_mod_for_fabric_and_quilt_project:mcwebserver_minecraft_mod_for_fabric_and_quilt:*:*:*:*:*:*:*:*
cpe:2.3:a:mcwebserver_minecraft_mod_for_forge_project:mcwebserver_minecraft_mod_for_forge:*:*:*:*:*:*:*:*

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