CVE-2024-11831: XSS (CVSS 5.4)

Description

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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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://access.redhat.com/errata/RHBA-2025:0304 https://access.redhat.com/errata/RHSA-2025:0381 https://access.redhat.com/errata/RHSA-2025:10853 https://access.redhat.com/errata/RHSA-2025:1334 https://access.redhat.com/errata/RHSA-2025:1468 https://access.redhat.com/errata/RHSA-2025:21068 https://access.redhat.com/errata/RHSA-2025:21203 https://access.redhat.com/errata/RHSA-2025:3870 https://access.redhat.com/errata/RHSA-2025:4511 https://access.redhat.com/errata/RHSA-2025:8059

Frequently Asked Questions

What is CVE-2024-11831? +

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. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2024-11831? +

CVE-2024-11831 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2024-11831? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2024-11831