XSS in Expressjs Express
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (36.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.
Affected products
- Expressjs Express — versions < 4.20.0, >= 5.0.0-alpha.1, < 5.0.0
- Openjsf Express — versions 5.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2024-43796?
- CVE-2024-43796 is a medium-severity vulnerability in Expressjs Express, classified under Cross-site Scripting. CVSS score: 5.0/10. Published 2024-09-10.
- How severe is CVE-2024-43796?
- Medium severity. CVSS v3 base score is 5.0 out of 10.
- Is CVE-2024-43796 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.