Cross-site Scripting Affecting express package, versions <4.20.0>=5.0.0-alpha.1 <5.0.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published11 Sept 2024
- disclosed10 Sept 2024
- creditAdamKorcz
Introduced: 10 Sep 2024
CVE-2024-43796 (opens in a new tab)How to fix?
Upgrade express to version 4.20.0, 5.0.0 or higher.
Overview
express is a minimalist web framework.
Affected versions of this package are vulnerable to Cross-site Scripting due to improper handling of user input in the response.redirect method. An attacker can execute arbitrary code by passing malicious input to this method.
Note
To exploit this vulnerability, the following conditions are required:
The attacker should be able to control the input to
response.redirect()express must not redirect before the template appears
the browser must not complete redirection before:
the user must click on the link in the template