CVE-2019-20920Published

Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to ru…

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2019-20920

Published

Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).

Source published: 30 Sep 2020 12:30:56 UTC
Source modified: 8 Oct 2026 21:13:55 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

euvd · EUVD-2022-0789

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Sep 30, 2020, 12:30:56 PM

dateUpdated: Oct 8, 2026, 9:13:55 PM

4 related source bulletins · separate from aliases

RHSA-2020:5179: Red Hat Security Advisory: Red Hat Virtualization security, bug fix, and enhancement update

CVE-2019-20920 · CVE-2019-20922 · CVE-2020-8203

RHSA-2023:1334: Red Hat Security Advisory: Red Hat Process Automation Manager 7.13.2 security update

CVE-2017-12629 · CVE-2018-1000134 · CVE-2019-19919 · CVE-2019-20920 · CVE-2019-20922 · CVE-2021-23369 · CVE-2021-23383 · CVE-2021-26291

RHSA-2021:2500: Red Hat Security Advisory: Red Hat OpenShift Enterprise security and bug fix update

CVE-2019-20920 · CVE-2019-20922 · CVE-2021-23369 · CVE-2021-23383

RHSA-2021:3917: Red Hat Security Advisory: Red Hat Quay v3.6.0 security, bug fix and enhancement update

CVE-2017-16137 · CVE-2017-16138 · CVE-2018-1107 · CVE-2018-1109 · CVE-2018-3721 · CVE-2018-3728 · CVE-2018-3774 · CVE-2018-16492 · CVE-2018-21270 · CVE-2019-20920 · CVE-2019-20922 · CVE-2019-1010266 · CVE-2020-7608 · CVE-2020-8203 · CVE-2020-15366 · CVE-2020-26237 · CVE-2020-26291 · CVE-2020-35653 · CVE-2020-35654 · CVE-2021-23364 · CVE-2021-23368 · CVE-2021-23382 · CVE-2021-25289 · CVE-2021-25290 · CVE-2021-25291 · CVE-2021-25292 · CVE-2021-25293 · CVE-2021-27515 · CVE-2021-27516 · CVE-2021-27921 · CVE-2021-27922 · CVE-2021-27923 · CVE-2021-34552

Source published: Sep 30, 2020, 12:30:56 PM (timezone not stated)
Source modified: Oct 8, 2026, 9:13:55 PM (timezone not stated)
Observed here: 9 Nov 2026 19:12:36 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

nvd · CVE-2019-20920

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-94

Original publisher date fields

published: 2020-09-30T18:15:17.927

lastModified: 2026-10-08T22:16:54.603

1 source CPE criteria · context only

cpe:2.3:a:handlebarsjs:handlebars:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 30 Sep 2020 18:15:17 UTC
Source modified: 8 Oct 2026 22:16:54 UTC
Observed here: 24 Oct 2026 15:17:33 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Primary · 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L

CVSS 2.0 · [email protected] · Primary · 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

osv · GHSA-3cqr-58rm-57f8

Published

Source published: 10 Feb 2022 20:38:19 UTC
Source modified: 10 Sep 2026 03:49:16 UTC
Observed here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L

Publisher rating · HIGH