9.3

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2025-13158

CVE-2025-13158: apidoc-core - prototype pollution in api_group.js, api_param_title.js, api_use.js, and api_permission.js worker

Prototype pollution vulnerability in apidoc-core versions 0.2.0 and all subsequent versions allows remote attackers to modify JavaScript object prototypes via malformed data structures, including the “define” property processed by the application, potentially leading to denial of service or unintended behavior in applications relying on the integrity of prototype chains. This affects the preProcess() function in api_group.js, api_param_title.js, api_use.js, and api_permission.js worker modules.

(GitHub Advisory)

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CVE-2025-13158

CVE-2025-13158:

9.3

CVSS Score

4.0

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
apidoc-core	npm	>= 0.2.0, <= 0.15.0

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability exists in the preProcess function within four different worker modules: api_group.js, api_param_title.js, api_use.js, and api_permission.js. In each of these functions, data is processed from parsed apidoc comments. Specifically, the name of a @apiDefine block is extracted from the parsed data. This name is then used as a property accessor to build a result object. The vulnerability occurs because there is no validation or sanitization of the name variable. An attacker can craft a malicious apidoc comment where the @apiDefine name is __proto__. This causes the code to access result[target]['__proto__'], which allows for the modification of the global Object.prototype. This is a classic prototype pollution vulnerability which can lead to denial of service or potentially remote code execution, depending on how the application uses objects.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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