CVE-2021-23384

MEDIUM

koa-remove-trailing-slashes < 2.0.2 - Open Redirect via Trailing Double Slashes

Title source: llm
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 5.4
EPSS 0.0083
EPSS Percentile 52.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Details

CWE
CWE-601
Status published
Products (2)
koa-remove-trailing-slashes_project/koa-remove-trailing-slashes < 2.0.2
npm/koa-remove-trailing-slashes 0 - 2.0.2npm
Published May 17, 2021
Tracked Since Feb 18, 2026