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CVE-2019-5418 (GCVE-0-2019-5418)

Vulnerability from cvelistv5 – Published: 2019-03-27 13:38 – Updated: 2025-10-21 23:45
VLAI CISA Previdian
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: active Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-17 03:55 UTC
CWE
  • CWE-22 - Path Traversal (CWE-22)
Assigner
References
Impacted products
Vendor Product Version CPE status
Rails https://github.com/rails/rails Affected: 5.2.2.1
Affected: 5.1.6.2
Affected: 5.0.7.2
Affected: 4.2.11.1
guessed Create a notification for this product.
Date Public
2019-03-13 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 36517009-d4ae-468f-b228-c75fca43d9a1

Vulnerability ID: CVE-2019-5418

Status: Confirmed

Status Updated: 2025-07-07 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-07-07
Asserted: 2025-07-07
Scope
Notes: KEV entry: Rails Ruby on Rails Path Traversal Vulnerability | Affected: Rails / Ruby on Rails | Description: Rails Ruby on Rails contains a path traversal vulnerability in Action View. Specially crafted accept headers in combination with calls to `render file:` can cause arbitrary files on the target server to be rendered, disclosing the file contents. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2025-07-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://web.archive.org/web/20190313201629/https://weblog.rubyonrails.org/2019/3/13/Rails-4-2-5-1-5-1-6-2-have-been-released/ ; https://nvd.nist.gov/vuln/detail/CVE-2019-5418
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-22
Feed CISA Known Exploited Vulnerabilities Catalog
Product Ruby on Rails
Due Date 2025-07-28
Date Added 2025-07-07
Vendorproject Rails
Vulnerabilityname Rails Ruby on Rails Path Traversal Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:24 UTC | Updated: 2026-02-06 07:53 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5ffcf643-dba8-4fb7-9bdd-b45db0667cb9

Vulnerability ID: CVE-2019-5418

Status: Confirmed

Status Updated: 2026-06-01 10:36 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01
Scope
Notes: KEVIntel entry: 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... | Affected: Rails / https://github.com/rails/rails | CVSS: 7.5 (HIGH) | EPSS: 0.98507 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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...
Vendor Rails
Product https://github.com/rails/rails
Added Date 2026-06-01T10:36:30.850Z
Cvss Score 7.5
Epss Score 0.98507
Cvss Severity HIGH
Epss Percentile 0.99914
Used In Malware unknown
Ahead Of Cisa Kev 
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}
Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:42 UTC | Updated: 2026-06-19 12:42 UTC
Show details on NVD website
To clipboard 

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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.