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NVD / CVE Program· CNA GitHub_M

CVE-2020-15169: In Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View's…

MediumCVSS 6.1 · v3.1—Proof of concept Fix available

Noroxi assessment

Priority: Monitor (action score 25/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 2.3% (FIRST EPSS); higher than 84% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: rails (Debian:10) 2:5.2.2.1+dfsg-1+deb10u2; rails (Debian:12) 2:6.0.3.3+dfsg-1; rails (Debian:9) 2:4.2.7.1-1+deb9u4.

Low priority for now. Upgrade to rails (Debian:10) 2:5.2.2.1+dfsg-1+deb10u2; rails (Debian:12) 2:6.0.3.3+dfsg-1; rails (Debian:9) 2:4.2.7.1-1+deb9u4 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 Action View before versions 5.2.4.4 and 6.0.3.3 there is a potential Cross-Site Scripting (XSS) vulnerability in Action View's translation helpers. Views that allow the user to control the default (not found) value of the `t` and `translate` helpers could be susceptible to XSS attacks. When an HTML-unsafe string is passed as the default for a missing translation key named html or ending in _html, the default string is incorrectly marked as HTML-safe and not escaped. This is patched in versions 6.0.3.3 and 5.2.4.4. A workaround without upgrading is proposed in the source advisory.

Published
Sep 11, 2020
Updated
Jun 16, 2026
EPSS
2.3% · 84th percentile

Report tools

JSON

Action score

25

Monitor

Low priority for now.

CVSS
24 / 40 · 6.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.3%

CNA vs NVD score

NVD
6.1
CNA · GitHub_M
5.4
0.7 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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.

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

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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?

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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
action view projectaction view
debiandebian linux
fedoraprojectfedora

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

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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

    • < 5.2.4.4, >= 6.0.0.0, < 6.0.3.3affected
Affected versions · NVD (4)

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

  • action view project action viewbefore 5.2.4.4
  • action view project action view6.0.0.0 and later · before 6.0.3.3
  • debian debian linux10.0
  • fedoraproject fedora33

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:10railsbefore 2:5.2.2.1+dfsg-1+deb10u22:5.2.2.1+dfsg-1+deb10u2
Debian:12railsbefore 2:6.0.3.3+dfsg-12:6.0.3.3+dfsg-1
Debian:9railsbefore 2:4.2.7.1-1+deb9u42:4.2.7.1-1+deb9u4
openSUSE:Leap 15.1rmt-serverbefore 2.6.5-lp151.2.18.22.6.5-lp151.2.18.2
openSUSE:Leap 15.2rmt-serverbefore 2.6.5-lp152.2.3.12.6.5-lp152.2.3.1
openSUSE:Leap 15.4rubygem-actionview-5_1before 5.1.4-150000.3.6.15.1.4-150000.3.6.1
openSUSE:Tumbleweedrmt-serverbefore 2.6.13-1.12.6.13-1.1
Red Hat:satellite_capsule:6.9::el7ansible-collection-redhat-satellitebefore 0:2.0.1-1.el7sat0:2.0.1-1.el7sat
Red Hat:satellite_capsule:6.9::el7ansible-runnerbefore 0:1.4.6-1.el7ar0:1.4.6-1.el7ar
Red Hat:satellite_capsule:6.9::el7ansiblerole-foreman_scap_clientbefore 0:0.1.0-1.el7sat0:0.1.0-1.el7sat
Red Hat:satellite_capsule:6.9::el7ansiblerole-insights-clientbefore 0:1.7.1-1.el7sat0:1.7.1-1.el7sat
Red Hat:satellite_capsule:6.9::el7ansiblerole-satellite-receptor-installerbefore 0:0.6.13-1.el7sat0:0.6.13-1.el7sat
Red Hat:satellite_capsule:6.9::el7crane-selinuxbefore 0:3.5.1-1.el7sat0:3.5.1-1.el7sat
Red Hat:satellite_capsule:6.9::el7createrepo_cbefore 0:0.17.1-1.el7pc0:0.17.1-1.el7pc
Red Hat:satellite_capsule:6.9::el7createrepo_c-debuginfobefore 0:0.17.1-1.el7pc0:0.17.1-1.el7pc
Red Hat:satellite_capsule:6.9::el7createrepo_c-libsbefore 0:0.17.1-1.el7pc0:0.17.1-1.el7pc
Red Hat:satellite_capsule:6.9::el7foremanbefore 0:2.3.1.20-1.el7sat0:2.3.1.20-1.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-bootloaders-redhatbefore 0:202005201200-1.el7sat0:202005201200-1.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-bootloaders-redhat-tftpbootbefore 0:202005201200-1.el7sat0:202005201200-1.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-debugbefore 0:2.3.1.20-1.el7sat0:2.3.1.20-1.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-discovery-imagebefore 1:3.7.4-2.el7sat1:3.7.4-2.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-discovery-image-servicebefore 0:1.0.0-4.el7sat0:1.0.0-4.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-discovery-image-service-tuibefore 0:1.0.0-4.el7sat0:1.0.0-4.el7sat
Red Hat:satellite_capsule:6.9::el7foreman-installerbefore 1:2.3.1.10-1.el7sat1:2.3.1.10-1.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:rails2:6.0.3.3+dfsg-1 · Debian:12Package registry (OSV)
opensuse:rmt-server2.6.5-lp152.2.3.1 · openSUSE:Leap 15.2Package registry (OSV)
opensuse:rubygem-actionview-5_15.1.4-150000.3.6.1 · openSUSE:Leap 15.4Package registry (OSV)
red hat:ansible-collection-redhat-satellite0:2.0.1-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:ansible-runner0:1.4.6-1.el7ar · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:ansiblerole-foreman_scap_client0:0.1.0-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:ansiblerole-insights-client0:1.7.1-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:ansiblerole-satellite-receptor-installer0:0.6.13-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:crane-selinux0:3.5.1-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:createrepo_c0:0.17.1-1.el7pc · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:createrepo_c-debuginfo0:0.17.1-1.el7pc · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:createrepo_c-libs0:0.17.1-1.el7pc · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:foreman0:2.3.1.20-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat0:202005201200-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
red hat:foreman-bootloaders-redhat-tftpboot0:202005201200-1.el7sat · Red Hat:satellite_capsule:6.9::el7Package registry (OSV)
RubyGems:actionview5.2.4.4Package registry (OSV)
RubyGems:actionview6.0.3.3Package 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_24.2.9-9.12.1 · SUSE:OpenStack Cloud 6-LTSSPackage registry (OSV)
suse:rubygem-actionview-5_15.1.4-150000.3.6.1 · SUSE:Linux Enterprise High Availability Extension 15 SP1Package 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:02020-10-08

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+26 d
  3. TodayNov 13, 2026+2254 d

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is 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
None
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

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

nvd-primary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

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

—

References

Show all references (3 more)

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

All records