5.3
MEDIUM CVSS 3.1
CVE-2025-59364
Express XSS Sanitizer Unbounded Recursion Depth Vulnerability
Description

The express-xss-sanitizer (aka Express XSS Sanitizer) package through 2.0.0 for Node.js has an unbounded recursion depth in sanitize in lib/sanitize.js for a JSON request body.

INFO

Published Date :

Sept. 14, 2025, 11:15 p.m.

Last Modified :

Sept. 14, 2025, 11:15 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2025-59364 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
Solution
Update the express-xss-sanitizer package to a version that resolves the unbounded recursion depth issue.
  • Update the express-xss-sanitizer package to the latest version.
  • Review package dependencies for security vulnerabilities.
  • Test the application thoroughly after updating.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-59364.

URL Resource
https://gist.github.com/Spendroslav/177804eaef5acfb222a550de212a1b94
https://github.com/AhmedAdelFahim/express-xss-sanitizer
https://www.npmjs.com/package/express-xss-sanitizer
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-59364 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-59364 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-59364 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-59364 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Sep. 14, 2025

    Action Type Old Value New Value
    Added Description The express-xss-sanitizer (aka Express XSS Sanitizer) package through 2.0.0 for Node.js has an unbounded recursion depth in sanitize in lib/sanitize.js for a JSON request body.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    Added CWE CWE-674
    Added Reference https://gist.github.com/Spendroslav/177804eaef5acfb222a550de212a1b94
    Added Reference https://github.com/AhmedAdelFahim/express-xss-sanitizer
    Added Reference https://www.npmjs.com/package/express-xss-sanitizer
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact