CVE-2019-5418
Rails Ruby on Rails Path Traversal Vulnerability
- Published
- Mar 27, 2019
- Updated
- Oct 21, 2025
- Assigning CNA
- hackerone
- Evidence observed
- Mar 21, 2019
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
There is a File Content Disclosure vulnerability in Action View <5.2.2.1, <5.1.6.2, <5.0.7.2, <4.2.11.1 and v3 where specially crafted accept headers can cause contents of arbitrary files on the target system's filesystem to be exposed.
Sources
12- CVE-2019-5418-ScannerScanner
A multi-threaded Golang scanner to identify Ruby endpoints vulnerable to CVE-2019-5418
Ruby on Rails是一个 Web 应用程序框架,是一个相对较新的 Web 应用程序框架，构建在 Ruby 语言之上。这个漏洞主要是由于Ruby on Rails使用了指定参数的render file来渲染应用之外的视图，我们可以通过修改访问某控制器的请求包，通过“…/…/…/…/”来达到路径穿越的目的，然后再通过“{{”来进行模板查询路径的闭合，使得所要访问的文件被当做外部模板来解析。
CVE-2019-5418 - File Content Disclosure on Ruby on Rails
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