VulnerabilityModified
CVE-2021-23387
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/).
MEDIUM 6.1EPSS 1.15%
Does this matter?
Lower severity and a low EPSS score (1.15%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 1.15% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- trailing-slash project/trailing-slash
- Source
- report@snyk.io
References
- https://github.com/fardog/trailing-slash/blob/f640ece055fe85275c983de5eb94661b95e35670/index.js%23L36Broken Link
- https://github.com/fardog/trailing-slash/commit/f8e66f1429308247e5a119d430203077d8f05048Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-TRAILINGSLASH-1085707Exploit, Patch, Third Party Advisory
- https://github.com/fardog/trailing-slash/blob/f640ece055fe85275c983de5eb94661b95e35670/index.js%23L36Broken Link
- https://github.com/fardog/trailing-slash/commit/f8e66f1429308247e5a119d430203077d8f05048Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-TRAILINGSLASH-1085707Exploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.