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NVD / CVE Program· CNA GitHub_M

CVE-2020-5267: Possible XSS vulnerability in ActionView

Noroxi assessment

Priority: Monitor (action score 19/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.5% (FIRST EPSS); higher than 74.6% of all records.
  • Anyone who can reach it over the internet can trigger it. Administrator privileges are required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: rails (Debian:12) 2:5.2.4.1+dfsg-2; rails (Debian:8) 2:4.1.8-1+deb8u6; rmt-server (openSUSE:Leap 15.1) 2.6.5-lp151.2.18.2.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to rails (Debian:12) 2:5.2.4.1+dfsg-2; rails (Debian:8) 2:4.1.8-1+deb8u6; rmt-server (openSUSE:Leap 15.1) 2.6.5-lp151.2.18.2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In ActionView before versions 6.0.2.2 and 5.2.4.2, there is a possible XSS vulnerability in ActionView's JavaScript literal escape helpers. Views that use the `j` or `escape_javascript` methods may be susceptible to XSS attacks. The issue is fixed in versions 6.0.2.2 and 5.2.4.2.

MediumCVSS 4.8 · v3.1—Proof of concept Fix available
Published
Mar 19, 2020
Updated
Jun 16, 2026
EPSS
1.5% · 74th percentile

Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.5%

CNA vs NVD score

NVD
4.8
CNA · GitHub_M
4.0
0.8 point gap

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
rubyonrailsactionview
debiandebian linux
fedoraprojectfedora
opensuseleap

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux8.0
  • fedoraproject fedora33
  • opensuse leap15.1
  • rubyonrails actionviewbefore 5.2.4.2
  • rubyonrails actionview6.0.0 and later · before 6.0.2.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • rails actionview

    • < 5.2.4.2, >= 6.0.0, < 6.0.2.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12railsbefore 2:5.2.4.1+dfsg-22:5.2.4.1+dfsg-2
Debian:8railsbefore 2:4.1.8-1+deb8u62:4.1.8-1+deb8u6
openSUSE:Leap 15.1rmt-serverbefore 2.6.5-lp151.2.18.22.6.5-lp151.2.18.2
openSUSE:Leap 15.1rubygem-actionview-5_1before 5.1.4-lp151.3.3.15.1.4-lp151.3.3.1
openSUSE:Leap 15.2rmt-serverbefore 2.6.5-lp152.2.3.12.6.5-lp152.2.3.1
openSUSE:Tumbleweedrubygem-actionview-6.0before 6.0.4.4-1.16.0.4.4-1.1
Red Hat:satellite_capsule:6.8::el7ansible-collection-redhat-satellitebefore 0:1.3.0-1.el7sat0:1.3.0-1.el7sat
Red Hat:satellite_capsule:6.8::el7ansible-runnerbefore 0:1.4.6-1.el7ar0:1.4.6-1.el7ar
Red Hat:satellite_capsule:6.8::el7ansiblerole-foreman_scap_clientbefore 0:0.0.5-1.el7sat0:0.0.5-1.el7sat
Red Hat:satellite_capsule:6.8::el7ansiblerole-insights-clientbefore 0:1.7.1-1.el7sat0:1.7.1-1.el7sat
Red Hat:satellite_capsule:6.8::el7ansiblerole-satellite-receptor-installerbefore 0:0.6.13-1.el7sat0:0.6.13-1.el7sat
Red Hat:satellite_capsule:6.8::el7crane-selinuxbefore 0:3.4.0-1.el7sat0:3.4.0-1.el7sat
Red Hat:satellite_capsule:6.8::el7createrepo_cbefore 0:0.7.4-1.el7sat0:0.7.4-1.el7sat
Red Hat:satellite_capsule:6.8::el7createrepo_c-debuginfobefore 0:0.7.4-1.el7sat0:0.7.4-1.el7sat
Red Hat:satellite_capsule:6.8::el7createrepo_c-libsbefore 0:0.7.4-1.el7sat0:0.7.4-1.el7sat
Red Hat:satellite_capsule:6.8::el7foremanbefore 0:2.1.2.19-1.el7sat0:2.1.2.19-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-bootloaders-redhatbefore 0:202005201200-1.el7sat0:202005201200-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-bootloaders-redhat-tftpbootbefore 0:202005201200-1.el7sat0:202005201200-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-debugbefore 0:2.1.2.19-1.el7sat0:2.1.2.19-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-discovery-imagebefore 1:3.6.7-1.el7sat1:3.6.7-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-discovery-image-servicebefore 0:1.0.0-3.el7sat0:1.0.0-3.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-discovery-image-service-tuibefore 0:1.0.0-3.el7sat0:1.0.0-3.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-installerbefore 1:2.1.2.8-1.el7sat1:2.1.2.8-1.el7sat
Red Hat:satellite_capsule:6.8::el7foreman-installer-katellobefore 1:2.1.2.8-1.el7sat1:2.1.2.8-1.el7sat

+96

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:rails2:5.2.4.1+dfsg-2 · Debian:12Package registry (OSV)
opensuse:rmt-server2.6.5-lp152.2.3.1 · openSUSE:Leap 15.2Package registry (OSV)
opensuse:rubygem-actionview-5_15.1.4-lp151.3.3.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:rubygem-actionview-6.06.0.4.4-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:ansible-collection-redhat-satellite0:1.3.0-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansible-runner0:1.4.6-1.el7ar · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansiblerole-foreman_scap_client0:0.0.5-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansiblerole-insights-client0:1.7.1-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:ansiblerole-satellite-receptor-installer0:0.6.13-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:crane-selinux0:3.4.0-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:createrepo_c0:0.7.4-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:createrepo_c-debuginfo0:0.7.4-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:createrepo_c-libs0:0.7.4-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:foreman0:2.1.2.19-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat0:202005201200-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat-tftpboot0:202005201200-1.el7sat · Red Hat:satellite_capsule:6.8::el7Package registry (OSV)
RubyGems:actionview5.2.4.2Package registry (OSV)
RubyGems:actionview6.0.2.2Package registry (OSV)
suse:rmt-server2.6.5-3.3.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP2Package registry (OSV)
suse:rubygem-actionview-4_24.2.9-9.6.1 · SUSE:OpenStack Cloud 7Package registry (OSV)
suse:rubygem-actionview-5_15.1.4-3.3.1 · SUSE:Linux Enterprise High Availability Extension 15Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:12020-03-23

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+3 d
  3. TodayOct 31, 2026+2417 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-80 · Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records