Is there a public exploit for CVE-2024-43796?

No public exploit for CVE-2024-43796 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2024-43796?

CVE-2024-43796 scores CVSS 5 (v3.1), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.49%.

What does CVE-2024-43796 affect?

CVE-2024-43796 affects expressjs express.

5.0 Medium

Express.js minimalist web framework for node.

CVE-2024-43796

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

Assessment

CVSS: 5 (v3.1)
Severity: Medium
EPSS: 0.49% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 10 September 2024
Last updated: 17 June 2026
Affected: expressjs · express · express
Weakness: CWE-79
Assigner: security-advisories@github.com

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

At the source

References

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