Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-15169
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:52 UTC · Revision 1
Source evidence
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.
osv:CVE-2020-15169
Complete source record
{
"id": "54bd75451722d156acae12170dd422ddcadcd3394ec044524e460a20f047dfa5",
"url": "https://osv.dev/vulnerability/CVE-2020-15169",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-15169",
"summary": "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.",
"evidence": "osv:CVE-2020-15169",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-15169",
"aliases": [
"CVE-2020-15169",
"GHSA-cfjv-5498-mph5"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/rails/rails",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "404ad9e8acf8ab45ae2314050131a00e57e63b40"
},
{
"fixed": "070d4afacd3e9721b7e3a4634e4d026b5fa2c32c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:action_view_project:action_view:*:*:*:*:*:ruby:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "5.2.4.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:action_view_project:action_view:*:*:*:*:*:ruby:*:*",
"range": [
{
"introduced": "6.0.0.0"
},
{
"fixed": "6.0.3.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v5.2.4.3",
"v6.0.3.2",
"v6.0.3.1",
"v6.0.3",
"v5.2.4.2",
"v6.0.3.rc1",
"v5.2.4.1",
"v5.2.4",
"v5.2.4.rc1",
"v6.0.0",
"v6.0.0.rc1",
"v6.0.0.beta2",
"v6.0.0.beta1",
"v5.2.1.rc1",
"v5.2.0.rc1",
"v5.1.0.beta1",
"v5.0.0.beta4",
"v5.0.0.beta2",
"v5.0.0.beta1",
"v4.2.0.beta1",
"v4.0.0.rc1",
"v4.0.0.beta1",
"v3.2.0.rc1",
"v3.1.0.rc1",
"v3.1.0.beta1",
"v3.0.0.beta3",
"v3.0.0.beta.3",
"v2.0.1",
"v2.0.0",
"v2.0.0_RC2",
"v2.0.0_RC1",
"v2.0.0_PR",
"v1.1.1",
"v1.1.0",
"v1.1.0_RC1",
"v0.14.3",
"v0.14.1",
"v0.13.1",
"v0.13.0",
"v0.12.0",
"v0.11.1",
"v0.11.0",
"v0.10.1",
"v0.10.0",
"v0.9.5",
"v0.9.4.1",
"v0.9.4",
"v0.9.3",
"v0.9.2",
"v0.9.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15169.json"
}
}
],
"modified": "2026-10-20T10:51:52.686359784Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XJ7NUWXAEVRQCROIIBV4C6WXO6IR3KSB/",
"https://lists.debian.org/debian-lts-announce/2020/10/msg00015.html",
"https://www.debian.org/security/2020/dsa-4766",
"https://github.com/rails/rails/security/advisories/GHSA-cfjv-5498-mph5"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "33"
},
{
"last_affected": "33"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-15169",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383068,
"published_at": "2020-09-11T16:15:12.287+00:00"
}