CVEvulnerability
CVE-2021-23387
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-05-24
- 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])
- 6.1 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 trailing-slash before 2.0.1 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::createTrailing(), as the web server uses relative URLs instead of absolute URLs.
Affected configurations
• trailing-slash project trailing-slash (< 2.0.1)
Related
Weakness · CWE (1)
- CWE-601 URL Redirection to Untrusted Site weakness
References
- https://github.com/fardog/trailing-slash/blob/f640ece055fe85275c983de5eb94661b95e35670/index.js%23L36 Broken Link
- https://github.com/fardog/trailing-slash/commit/f8e66f1429308247e5a119d430203077d8f05048 Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-TRAILINGSLASH-1085707 Exploit, Patch, Third Party Advisory
- https://github.com/fardog/trailing-slash/blob/f640ece055fe85275c983de5eb94661b95e35670/index.js%23L36 Broken Link
- https://github.com/fardog/trailing-slash/commit/f8e66f1429308247e5a119d430203077d8f05048 Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-TRAILINGSLASH-1085707 Exploit, Patch, Third Party Advisory