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Node.js CVE-2024-11831

MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2025-02-10 secalert@redhat.com
XSS Node.js
5.4
CVSS 3.1 · Vendor: redhat
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Vulnerability Assessment

Weakness
CWE
CWE-79
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 5.4 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, user interaction required. EPSS exploitation probability: 1.13%.
Exploit ScenarioDerived

A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 1.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

A flaw was found in npm-serialize-javascript. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Affected Packages

npm serialize-javascript fix: 6.0.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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.

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Severity by source

Vendor (redhat) PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
SUSE MEDIUM
Red Hat 5.4 MEDIUM

Primary rating from Vendor (redhat).

CVSS VectorVendor: redhat

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
CVE Published
Feb 10, 2025 - 16:15 nvd
MEDIUM 5.4

DescriptionCVE.org

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.

Executive ViewAI

Why It Matters

Organizations using A flaw should be aware of moderate risk from CVE-2024-11831, a cross-site scripting vulnerability rated CVSS 5.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: implement CSP headers, enable HttpOnly cookies, deploy WAF XSS rules.

Threat Intelligence Overview

EPSS Score
1.1%
Top 22% exploitable
Data Quality
5 sources
Confidence: Medium
NVD CVE.org EPSS Vendor GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 1.1%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +27
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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Same weakness CWE-79 – Cross-site Scripting (XSS)

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
SUSE Liberty Linux 8 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 12 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed

References

Advisories & patches
REF https://access.redhat.com/errata/RHBA-2025:0304 REF https://access.redhat.com/errata/RHSA-2025:0381 REF https://access.redhat.com/errata/RHSA-2025:10853 REF https://access.redhat.com/errata/RHSA-2025:1334 REF https://access.redhat.com/errata/RHSA-2025:1468 REF https://access.redhat.com/errata/RHSA-2025:21068 REF https://access.redhat.com/errata/RHSA-2025:21203 REF https://access.redhat.com/errata/RHSA-2025:3870 REF https://access.redhat.com/errata/RHSA-2025:4511 REF https://access.redhat.com/errata/RHSA-2025:8059 REF https://access.redhat.com/errata/RHSA-2025:8078 REF https://access.redhat.com/errata/RHSA-2025:8233 REF https://access.redhat.com/errata/RHSA-2025:8479 REF https://access.redhat.com/errata/RHSA-2025:8512 REF https://access.redhat.com/errata/RHSA-2025:8544 REF https://access.redhat.com/errata/RHSA-2025:8551 REF https://access.redhat.com/errata/RHSA-2025:9294 REF https://access.redhat.com/errata/RHSA-2026:1536 REF https://access.redhat.com/errata/RHSA-2026:2769 REF https://access.redhat.com/errata/RHSA-2026:62115 REF https://access.redhat.com/errata/RHSA-2026:83548 REF https://access.redhat.com/errata/RHSA-2026:8568 REF https://access.redhat.com/security/cve/CVE-2024-11831 REF https://bugzilla.redhat.com/show_bug.cgi?id=2312579 REF https://github.com/yahoo/serialize-javascript/commit/f27d65d3de42affe2aac14607066c293891cec4e REF https://github.com/yahoo/serialize-javascript/pull/173

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