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high·Product Based Web Vulnerabilities·Updated Jan 3, 2024

CVE-2021-40978 Scanner

Detects 'Directory Traversal' vulnerability in mkdocs affects v. 1.2.2.

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsurl
CostFree
2.2k
Times Used
continuous scan runs
3.7k
Continuously Checked
assets under CS
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2021-40978
7.5
CVSS

The mkdocs 1.2.2 built-in dev-server allows directory traversal using the port 8000, enabling remote exploitation to obtain :sensitive information. NOTE: the vendor has disputed this as described in https://github.com/mkdocs/mkdocs/issues/2601.] and https://github.com/nisdn/CVE-2021-40978/issues/1

Attack Vector
-
Privileges Req.
-
User Interaction
-
Affected
n/aby n/a
n/a
Updated Aug 21, 2026View on NVD →
Detail

Mkdocs is an open-source static site generator that is designed to build documentation websites using Markdown. It is widely used for creating, storing, and sharing documentation online. The product is intended to assist developers in the documentation of projects by creating aesthetically appealing, simple, and easily navigable pages.

Recently, a security vulnerability was discovered in the mkdocs 1.2.2 built-in dev-server. Dubbed CVE-2021-40978, the vulnerability allows directory traversal using the port 8000, potentially enabling remote exploitation. Although the vendor has disputed this vulnerability, it is a genuine threat, leaving digital assets exposed to malicious activities.

If exploited, CVE-2021-40978 puts sensitive information at risk of being accessed and potentially compromised. The attacker could gain unauthorized access to critical files, databases, and other resources, potentially leading to breaches, unauthorized transactions, and other malicious activities.

In conclusion, at s4e.io, we offer a secure and easy-to-use platform that makes it simple for developers and businesses to examine and detect vulnerabilities in their digital assets. With its pro features, users can quickly and thoroughly scan vulnerabilities to identify and fix them before they can be exploited. Protect your digital assets with s4e.io's pro features and stay ahead of potential security threats.

 

REFERENCES

Solution Advice

However, there are measures one can take to protect their digital assets. Here are a few precautions that can be taken to ensure the safety of products using mkdocs:

  • Keep all software and applications updated with the latest patches and security measures.
  • Implement a firewall or network-level security controls to oversee all incoming traffic.
  • Avoid exposing ports externally when not required.
  • Use complex and strong passwords for all accounts and credentials associated with the product.
  • Use reverse proxies to defend against potential attacks.

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