GHSA-qw6h-vgh9-j6wx

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Source
https://github.com/advisories/GHSA-qw6h-vgh9-j6wx
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-qw6h-vgh9-j6wx/GHSA-qw6h-vgh9-j6wx.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-qw6h-vgh9-j6wx
Aliases
Related
Published
2024-09-10T19:41:04Z
Modified
2024-09-10T19:57:33.205024Z
Severity
  • 5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
  • 2.3 (Low) 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 CVSS Calculator
Summary
express vulnerable to XSS via response.redirect()
Details

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()
  2. express MUST NOT redirect before the template appears
  3. the browser MUST NOT complete redirection before:
  4. the user MUST click on the link in the template
References

Affected packages

npm / express

Package

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.20.0

npm / express

Package

Affected ranges

Type
SEMVER
Events
Introduced
5.0.0-alpha.1
Fixed
5.0.0