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MEDIUM · 5.4

CVE-2021-23384

The package koa-remove-trailing-slashes before 2.0.2 are vulnerable to Open Redirect via the use of trailing double slashes in the URL when accessing the vulnerable endpoint (such as https://example.c...

Vulnerability Description

The package koa-remove-trailing-slashes before 2.0.2 are vulnerable to Open Redirect via the use of trailing double slashes in the URL when accessing the vulnerable endpoint (such as https://example.com//attacker.example/). The vulnerable code is in index.js::removeTrailingSlashes(), as the web server uses relative URLs instead of absolute URLs.

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
Koa-Remove-Trailing-Slashes ProjectKoa-Remove-Trailing-Slashes< 2.0.2

Related Weaknesses (CWE)

CWE-601

References

FAQ

What is CVE-2021-23384?

CVE-2021-23384 is a vulnerability with a CVSS score of 5.4 (MEDIUM). The package koa-remove-trailing-slashes before 2.0.2 are vulnerable to Open Redirect via the use of trailing double slashes in the URL when accessing the vulnerable endpoint (such as https://example.c...

How severe is CVE-2021-23384?

CVE-2021-23384 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-23384?

Check the references section above for vendor advisories and patch information. Affected products include: Koa-Remove-Trailing-Slashes Project Koa-Remove-Trailing-Slashes.