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Fencer Vulns
high 7.5

CVE-2019-5418 kev in the critical feed json

Path Traversal in Action View

published 2019-03-13 7 y ago modified 2026-06-17 4 mo ago also GHSA-86g5-2wh3-gc9j , EUVD-2019-0375

cvss
7.5
version 3.1, CNA
cisa kev
Exploited
added 2025-07-07
epss
98.5%
EPSS 98.5% chance of exploitation in 30 days, percentile 99.9%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

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.

Patch / fix

cisa 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.

  • rubygems actionview 4.2.11.1, 5.0.7.2, 5.1.6.2, 5.2.2.1
  • rubyonrails rails 4.2.11.1, 5.0.7.2, 5.1.6.2, 5.2.2.1
  • rails Debian 14, Debian 13, Debian 12 2:5.2.2.1+dfsg-1

debian advisories DEBIAN-CVE-2019-5418

  • rails Ubuntu Pro 16.04 LTS 2:4.2.6-1ubuntu0.1~esm2
  • rails Ubuntu Pro 18.04 LTS 2:4.2.10-0ubuntu4+esm2

ubuntu advisories UBUNTU-CVE-2019-5418

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • cfme cloudforms managementengine 5.9 5.9.9.3-1.el7cf
  • cfme-gemset cloudforms managementengine 5.9 5.9.9.3-1.el7cf
  • cfme-appliance cloudforms managementengine 5.9 5.9.9.3-1.el7cf
  • cfme-appliance-tools cloudforms managementengine 5.9 5.9.9.3-1.el7cf
  • cfme-appliance-common cloudforms managementengine 5.9 5.9.9.3-1.el7cf
  • cfme-amazon-smartstate cloudforms managementengine 5.9 5.9.9.3-1.el7cf
  • rh-ror50-rubygem-actionpack RHEL 3 SOFTWARE_COLLECTIONS 1:5.0.1-2.el6
  • rh-ror50-rubygem-actionpack RHEL 3 SOFTWARE_COLLECTIONS 1:5.0.1-2.el7

red hat advisories RHSA-2019:1289RHSA-2019:1147RHSA-2019:1149RHSA-2019:0796

  • rmt-server SLE Module for Server Applications 15 SP1, SLE Module for Public Cloud 15 SP1 2.6.5-3.18.1
  • rmt-server SLES for SAP 15, SLES 15-LTSS, SLE High Performance Computing 15-LTSS +1 more 2.6.5-3.34.1
  • rmt-server SLE Module for Server Applications 15 SP2, SLE Module for Public Cloud 15 SP2 2.6.5-3.3.1
  • rubygem-actionpack-4_2 OpenStack Cloud Crowbar 8, OpenStack Cloud 7, Enterprise Storage 4 4.2.9-7.6.1

suse advisories SUSE-SU-2020:3160-1SUSE-SU-2020:3147-1SUSE-SU-2020:3036-1SUSE-SU-2019:0915-1

  • rubygem-actioncable-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-actionmailbox-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-actionmailer-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-actionpack-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-actiontext-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-actionview-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-activejob-6.0 openSUSE Tumbleweed 6.0.4.4-1.1
  • rubygem-activemodel-6.0 openSUSE Tumbleweed 6.0.4.4-1.1

opensuse advisories openSUSE-SU-2024:11818-1openSUSE-SU-2024:11819-1openSUSE-SU-2024:11820-1openSUSE-SU-2024:11821-1openSUSE-SU-2024:11822-1openSUSE-SU-2024:11823-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-5418 updated cvss 8.1

rubygem-actionpack: render file directory traversal in Action View

  • Red Hat CloudForms Management Engine 5.9 cfme 5.9.9.3-1.el7cf, cfme-gemset 5.9.9.3-1.el7cf, cfme-appliance 5.9.9.3-1.el7cf, cfme-appliance-tools 5.9.9.3-1.el7cf, cfme-appliance-common 5.9.9.3-1.el7cf, cfme-amazon-smartstate 5.9.9.3-1.el7cf
    fixed: vendor fix RHSA-2019:1289
  • Red Hat CloudForms Management Engine 5.10 cfme 5.10.3.3-1.el7cf, ansible-tower 3.4.3-1.el7at, cfme-gemset 5.10.3.3-1.el7cf, ansible-tower-ui 3.4.3-1.el7at, cfme-appliance 5.10.3.3-1.el7cf, ansible-tower-setup 3.4.3-1.el7at, +6 more
    fixed: vendor fix RHSA-2019:0796
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ror42-rubygem-actionpack 4.2.6-5.el6, rh-ror50-rubygem-actionpack 5.0.1-2.el6 Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ror42-rubygem-actionpack 4.2.6-5.el7, rh-ror50-rubygem-actionpack 5.0.1-2.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ror42-rubygem-actionpack 4.2.6-5.el7, rh-ror50-rubygem-actionpack 5.0.1-2.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) rh-ror42-rubygem-actionpack 4.2.6-5.el7, rh-ror50-rubygem-actionpack 5.0.1-2.el7 Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-ror42-rubygem-actionpack 4.2.6-5.el7, rh-ror50-rubygem-actionpack 5.0.1-2.el7 Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ror42-rubygem-actionpack 4.2.6-5.el6, rh-ror50-rubygem-actionpack 5.0.1-2.el6
    +1 more products
    Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ror42-rubygem-actionpack 4.2.6-5.el7, rh-ror50-rubygem-actionpack 5.0.1-2.el7
    fixed: vendor fix RHSA-2019:1149

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-46585)
  3. Added to CISA KEV
  4. CISA SSVC: exploitation active
  5. CISA patch deadline

Known exploited

Added
16 mo ago
Patch by
2025-07-28 (15 mo ago)
Ransomware
Not known
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.
Vendor, product
Rails, Ruby on Rails
CISA name
Rails Ruby on Rails Path Traversal Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

98.51% chance of exploitation in the next 30 days, higher than 99.9% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H

Affected packages

ecosystem package affected fixed in
rubygems actionview
>=5.2.0, <5.2.2.1
>=4.0.0, <4.2.11.1
>=5.1.0, <5.1.6.2
>=5.0.0, <5.0.7.2
5.2.2.1
4.2.11.1
5.1.6.2
5.0.7.2

Affected products

  • Rails https://github.com/rails/rails

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.