CVE-2024-43796 – express

Package

Manager: npm
Name: express
Vulnerable Version: >=0 <4.20.0 || >=5.0.0-alpha.1 <5.0.0

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L

EPSS: 0.00058 pctl0.18189

Details

express vulnerable to XSS via response.redirect() ### Impact In express <4.20.0, passing untrusted user input - even after sanitizing it - to `response.redirect()` may execute untrusted code ### Patches this issue is patched in express 4.20.0 ### Workarounds users are encouraged to upgrade to the patched version of express, but otherwise can workaround this issue by making sure any untrusted inputs are safe, ideally by validating them against an explicit allowlist ### Details successful exploitation of this vector requires the following: 1. The attacker MUST control the input to response.redirect() 1. express MUST NOT redirect before the template appears 1. the browser MUST NOT complete redirection before: 1. the user MUST click on the link in the template

Metadata

Created: 2024-09-10T19:41:04Z
Modified: 2024-11-18T16:27:11Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-qw6h-vgh9-j6wx/GHSA-qw6h-vgh9-j6wx.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-qw6h-vgh9-j6wx
Finding: F008
Auto approve: 1