Open Redirect in Trailing-Slash Project
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/). The vulnerable code is in index.js::createTrailing(), as the web server uses relative URLs instead of absolute URLs.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.011 (65.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Trailing-Slash Project
- Trailing-Slash — versions unspecified
Weakness classification (CWE)
References
- snyk.io/vuln/SNYK-JS-TRAILINGSLASH-1085707 (Exploit, Patch, Third Party Advisory)
- github.com/fardog/trailing-slash/blob/f640ece055fe85275c983de5eb94661b95e35670/… (Broken Link)
- github.com/fardog/trailing-slash/commit/f8e66f1429308247e5a119d430203077d8f05048 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23387?
- CVE-2021-23387 is a medium-severity vulnerability in Trailing-Slash Project, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.4/10. Published 2021-05-24.
- How severe is CVE-2021-23387?
- Medium severity. CVSS v3 base score is 5.4 out of 10.