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CVE-2025-27597— Vue I18n Prototype Pollution in `handleFlatJson`

Quick assessment

Affected
intlify vue-i18n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vue-i18n是intlify开源的一个应用程序。 vue-i18n存在安全漏洞。攻击者利用该漏洞可以执行任意命令。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.60% · P46
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I. Basic Information for CVE-2025-27597

Vulnerability Information
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Vulnerability Title
Vue I18n Prototype Pollution in `handleFlatJson`
Source: CVE Program / CVE List V5
Vulnerability Description
Vue I18n is the internationalization plugin for Vue.js. @intlify/message-resolver and @intlify/vue-i18n-core are vulnerable to Prototype Pollution through the entry function: handleFlatJson. An attacker can supply a payload with Object.prototype setter to introduce or modify properties within the global prototype chain, causing denial of service (DoS) a the minimum consequence. Moreover, the consequences of this vulnerability can escalate to other injection-based attacks, depending on how the library integrates within the application. For instance, if the polluted property propagates to sensitive Node.js APIs (e.g., exec, eval), it could enable an attacker to execute arbitrary commands within the application's context.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
vue-i18n 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vue-i18n是intlify开源的一个应用程序。 vue-i18n存在安全漏洞。攻击者利用该漏洞可以执行任意命令。
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
intlify vue-i18n >= 9.1.0, < 9.14.3 -

II. Public POCs for CVE-2025-27597

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III. Intelligence Information for CVE-2025-27597

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Patches & Fixes for CVE-2025-27597 (1)

Vendor Advisories for CVE-2025-27597 (1)

IV. Related Vulnerabilities

Same product: vue-i18n
Same vendor: intlify
Same weakness: CWE-1321

V. Comments for CVE-2025-27597

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