CVE-2025-4727— Meteor livedata_server.js Object.assign redos
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I. Basic Information for CVE-2025-4727
Vulnerability Information
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Vulnerability Title
Meteor livedata_server.js Object.assign redos
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was found in Meteor up to 3.2.1 and classified as problematic. This issue affects the function Object.assign of the file packages/ddp-server/livedata_server.js. The manipulation of the argument forwardedFor leads to inefficient regular expression complexity. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 3.2.2 is able to address this issue. The identifier of the patch is f7ea6817b90952baaea9baace2a3b4366fee6a63. It is recommended to upgrade the affected component.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1333
Source: NVD (National Vulnerability Database)
Vulnerability Title
Meteor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Meteor是Meteor开源的一个JavaScript应用平台。 Meteor 3.2.1及之前版本存在安全漏洞，该漏洞源于文件packages/ddp-server/livedata_server.js中函数Object.assign对参数forwardedFor的错误操作导致正则表达式复杂性不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | Meteor | 3.2.0 | - |
II. Public POCs for CVE-2025-4727
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · n/a · 2025-05-15 · 13 CVEs total
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| CVE-2025-44183 | PHPGurukul Vehicle Record Management System 安全漏洞 | |
| CVE-2025-46052 | webERP 安全漏洞 | |
| CVE-2025-46053 | WebERP 安全漏洞 | |
| CVE-2025-44185 | SourceCodester Best Employee Management System 安全漏洞 | |
| CVE-2024-52878 | Insyde InsydeH2O kernel 安全漏洞 | |
| CVE-2024-52879 | Insyde InsydeH2O kernel 安全漏洞 | |
| CVE-2024-52877 | Insyde InsydeH2O kernel 安全漏洞 | |
| CVE-2024-52880 | Insyde InsydeH2O kernel 安全漏洞 | |
| CVE-2025-44110 | Fluxbb 安全漏洞 |
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Same weakness: CWE-1333
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V. Comments for CVE-2025-4727
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