EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
actionview💎actionview💎actionview💎actionviewReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.
Description
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 💎RubyGems | actionview | ≥ 5.2.0&&< 5.2.2.1 | 5.2.2.1 |
| 💎RubyGems | actionview | ≥ 4.0.0&&< 4.2.11.1 | 4.2.11.1 |
| 💎RubyGems | actionview | ≥ 5.1.0&&< 5.1.6.2 | 5.1.6.2 |
| 💎RubyGems | actionview | ≥ 5.0.0&&< 5.0.7.2 | 5.0.7.2 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Rails 5.2.1 - Arbitrary File Content Disclosure
by NotoriousRebel · Mar 21, 2019
Frequently Asked Questions
Is CVE-2019-5418 in your stack?
O3 detects CVE-2019-5418 across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.