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CVE-2025-57317: Prototype Pollution Vulnerability in apidoc-core

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Overview

The CVE-2025-57317 vulnerability stems from a prototype pollution issue discovered in the apidoc-core, a core parser library. This vulnerability affects all versions up to 0.15.0. If successfully exploited, attackers can sabotage the system causing denial of service (DoS) or potentially compromising data. Owing to the widespread use of apidoc-core, this vulnerability can have significant impacts on numerous systems and applications.

Vulnerability Summary

CVE ID: CVE-2025-57317
Severity: High (CVSS 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Denial of Service (DoS), Possible System Compromise, and Data Leakage

Affected Products

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Product | Affected Versions

apidoc-core | versions up to and including 0.15.0

How the Exploit Works

This vulnerability is exploited by an attacker sending a specially crafted payload, which injects properties on Object.prototype in the preProcess function of apidoc-core. The manipulated payload can cause prototype pollution, leading to a denial of service (DoS) condition, potential system compromise, and possible data leakage.

Conceptual Example Code

Potential exploitation of this vulnerability might look like the following pseudocode:

POST /parse HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "__proto__": {"crash": true} }

In this example, the payload `{“__proto__”: {“crash”: true}}` is sent to the vulnerable endpoint (`/parse`). This payload could lead to prototype pollution and cause a DoS condition or potentially compromise the system.

Recommendation

The recommended mitigation against this vulnerability is to apply the vendor patch once it is available. If this is not possible immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Regularly updating and patching software is a fundamental part of maintaining cybersecurity and should be a priority for all systems using apidoc-core.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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