CVE-2024-11831: Serialize javascript Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-76p7-773f-r4q5
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CVSS 5.4
CWE-79
Published
Advisory Summary

CVE-2024-11831 is a MODERATE (CVSS 5.4) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Serialize javascript libraries in the npm ecosystem. The issue involves cross-site scripting (xss) in serialize-javascript. Remediation is available by upgrading affected packages to version 6.0.2.

CVE-2024-11831 at a Glance

CVE Identifier CVE-2024-11831
GHSA Identifier GHSA-76p7-773f-r4q5
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Serialize javascript
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2024-11831

To remediate this vulnerability, upgrade all affected Serialize javascript dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

serialize-javascript fixed: 6.0.2 
npm install serialize-javascript@6.0.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls serialize-javascript

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2024-11831, inspect your project dependencies using npm:

npm ls serialize-javascript

Analyze the terminal output to locate any version of Serialize javascript in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.0.2), your application is affected.

Note: The npm ls serialize-javascript command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Serialize javascript, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A flaw was found in npm-serialize-javascript. The vulnerability occurs because the serialize-javascript module does not properly sanitize certain inputs, such as regex or other JavaScript object types, allowing an attacker to inject malicious code. This code could be executed when deserialized by a web browser, causing Cross-site scripting (XSS) attacks. This issue is critical in environments where serialized data is sent to web clients, potentially compromising the security of the website or web application using this package.

CVE-2024-11831 Affected Serialize javascript Versions

1 component(s)
Fixed Versions:
6.0.2
Product / Package Ecosystem Affected Versions Fixed Version
serialize-javascript
npm/serialize-javascript
npm
≥ 6.0.0
< 6.0.2
6.0.2

References

access.redhat.com/errata/rhsa-2025:13... WEB
https://access.redhat.com/errata/RHSA-2025:1334
access.redhat.com/errata/rhsa-2025:10... WEB
https://access.redhat.com/errata/RHSA-2025:10853
access.redhat.com/errata/rhsa-2025:03... WEB
https://access.redhat.com/errata/RHSA-2025:0381
access.redhat.com/errata/rhba-2025:03... WEB
https://access.redhat.com/errata/RHBA-2025:0304
NVD — CVE-2024-11831 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-11831
Serialize javascript Source Repository REPOSITORY
https://github.com/yahoo/serialize-javascript/pull/173
Security Fix Commit FIX COMMIT
https://github.com/yahoo/serialize-javascript/commit/f27d65d3de42affe2aac14607066c293891cec4e
Security Fix Commit FIX COMMIT
https://github.com/yahoo/serialize-javascript/commit/7f3ac252d86b802454cb43782820aea2e0f6dc25
Serialize javascript Source Repository REPOSITORY
https://github.com/yahoo/serialize-javascript
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2312579
Serialize javascript Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2024-11831
access.redhat.com/errata/rhsa-2026:85... WEB
https://access.redhat.com/errata/RHSA-2026:8568
access.redhat.com/errata/rhsa-2026:83... WEB
https://access.redhat.com/errata/RHSA-2026:83548
access.redhat.com/errata/rhsa-2026:62... WEB
https://access.redhat.com/errata/RHSA-2026:62115
access.redhat.com/errata/rhsa-2026:27... WEB
https://access.redhat.com/errata/RHSA-2026:2769
access.redhat.com/errata/rhsa-2026:15... WEB
https://access.redhat.com/errata/RHSA-2026:1536
access.redhat.com/errata/rhsa-2025:92... WEB
https://access.redhat.com/errata/RHSA-2025:9294
access.redhat.com/errata/rhsa-2025:85... WEB
https://access.redhat.com/errata/RHSA-2025:8551
access.redhat.com/errata/rhsa-2025:85... WEB
https://access.redhat.com/errata/RHSA-2025:8544
access.redhat.com/errata/rhsa-2025:85... WEB
https://access.redhat.com/errata/RHSA-2025:8512
access.redhat.com/errata/rhsa-2025:84... WEB
https://access.redhat.com/errata/RHSA-2025:8479
access.redhat.com/errata/rhsa-2025:82... WEB
https://access.redhat.com/errata/RHSA-2025:8233
access.redhat.com/errata/rhsa-2025:80... WEB
https://access.redhat.com/errata/RHSA-2025:8078
access.redhat.com/errata/rhsa-2025:80... WEB
https://access.redhat.com/errata/RHSA-2025:8059
access.redhat.com/errata/rhsa-2025:45... WEB
https://access.redhat.com/errata/RHSA-2025:4511
access.redhat.com/errata/rhsa-2025:38... WEB
https://access.redhat.com/errata/RHSA-2025:3870
access.redhat.com/errata/rhsa-2025:21... WEB
https://access.redhat.com/errata/RHSA-2025:21203
access.redhat.com/errata/rhsa-2025:21... WEB
https://access.redhat.com/errata/RHSA-2025:21068
access.redhat.com/errata/rhsa-2025:14... WEB
https://access.redhat.com/errata/RHSA-2025:1468

Frequently Asked Questions

What is CVE-2024-11831?
CVE-2024-11831 is a security vulnerability in Serialize javascript involving Cross-site Scripting (XSS) in serialize-javascript under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Serialize javascript versions are affected?
Affected versions include releases prior to 6.0.2 across affected packages: serialize-javascript.
What version fixes CVE-2024-11831?
Upgrading to 6.0.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is serialize-javascript affected?
Yes, serialize-javascript is affected in releases prior to 6.0.2. Upgrade your dependency to 6.0.2 or later.
What is the CVSS score of CVE-2024-11831?
CVE-2024-11831 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2024-11831?
CVE-2024-11831 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2024-11831?
Run the dependency tree command: 'npm ls serialize-javascript'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2025:8479"
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    "url" : "https://access.redhat.com/errata/RHSA-2025:8078"
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    "url" : "https://access.redhat.com/errata/RHSA-2025:8059"
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    "url" : "https://access.redhat.com/errata/RHSA-2025:4511"
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