GHSA-qw6h-vgh9-j6wx

express vulnerable to XSS via response.redirect()

En bref

Publiée
Mise à jour
CVE
CVE-2024-43796
CVSS_V3
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS_V4
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

Description

### 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

Paquets affectés

PaquetVersions
npm · expressintroduced 0, fixed 4.20.0
npm · expressintroduced 5.0.0-alpha.1, fixed 5.0.0

Références

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database