Vulnerability · Published Oct 14, 2021 · Assigned by hackerone
CVE-2021-22963
Medium 6.1
In plain English
A medium-severity open redirect in https://github.com/fastify/fastify-static. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)1.2%top 32.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A redirect vulnerability in the fastify-static module version < 4.2.4 allows remote attackers to redirect users to arbitrary websites via a double slash // followed by a domain: http://localhost:3000//google.com/%2e%2e.The issue shows up on all the fastify-static applications that set redirect: true option. By default, it is false.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | fastify-static | 4.2.4 | GHSA-p6vg-p826-qp3v |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | https://github.com/fastify/fastify-static | Affects < v4.2.4. Fixed in >= v4.2.4 |
Weakness: CWE-601
References
- https://hackerone.com/reports/1354255 x_refsource_MISC