CVE-2024-43796: express XSS — Fix

Description

Express.js minimalist web framework for node. In express < 4.20.0, passing untrusted user input - even after sanitizing it - to response.redirect() may execute untrusted code. This issue is patched in express 4.20.0.

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CVSS v3.1 Score

5.0

MEDIUM

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
openjsf	express	< 4.20.0
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All
openjsf	express	All

References

Advisories & Patches

https://github.com/expressjs/express/commit/54271f69b511fea198471e6ff3400ab805d6b553 https://github.com/expressjs/express/security/advisories/GHSA-qw6h-vgh9-j6wx

Frequently Asked Questions

What is CVE-2024-43796? +

Express.js minimalist web framework for node. In express < 4.20.0, passing untrusted user input - even after sanitizing it - to response.redirect() may execute untrusted code. This issue is patched in express 4.20.0. It has a CVSS v3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2024-43796? +

CVE-2024-43796 has a CVSS v3.1 score of 5.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-43796? +

CVE-2024-43796 affects products from openjsf, specifically: express. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-43796? +

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-2024-43796