CVEvulnerability

CVE-2021-23384

5.4 MEDIUM Published 2021-05-17 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-05-17
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS 2.0 ([email protected])
5.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:N
Weaknesses
CWE-601

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.

Affected configurations

• koa-remove-trailing-slashes project koa-remove-trailing-slashes (< 2.0.2)

Related

Weakness · CWE (1)

  • CWE-601 URL Redirection to Untrusted Site weakness

References