CVE-2019-14862
XSS in knockout
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
CVE-2019-14862- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2020-0394
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
EUVD-2020-0394- CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vcjj-xf2r-mwvc
XSS in knockout
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
GHSA-vcjj-xf2r-mwvc- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
CVE-2019-14862- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
CVE-2019-14862- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2019-14862
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
DEBIAN-CVE-2019-14862- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Show 5 moreShow less
OSVGHSA-vcjj-xf2r-mwvc
XSS in knockout
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
GHSA-vcjj-xf2r-mwvc- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2019-14862
There is a vulnerability in knockout before version 3.5.0-beta, where after escaping the context of the web application, the web application delivers data to its users along with other trusted dynamic content, without validating it.
- Record
UBUNTU-CVE-2019-14862- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 3.0
- 6.1 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVCLSA-2026-1772583208 No score
TuxCare security update for knockout (1 CVE)
TuxCare rebuilt knockout to address 1 CVE. Fixed in 3.4.2-tuxcare.2.
- Record
CLSA-2026-1772583208- Updated
- 2026-11-02
OSVCLSA-2026-1772583210 No score
TuxCare security update for knockout (1 CVE)
TuxCare rebuilt knockout to address 1 CVE. Fixed in 2.3.0-tuxcare.2.
- Record
CLSA-2026-1772583210- Updated
- 2026-11-02
OSVCLSA-2026-1773965927 No score
TuxCare security update for knockout (1 CVE)
TuxCare rebuilt knockout to address 1 CVE. Fixed in 3.2.0-tuxcare.1.
- Record
CLSA-2026-1773965927- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
knockoutnpm |
before 3.5.0 | 3.5.0 |
knockoutTuxCare:npm |
3.4.2-tuxcare.0 up to 3.4.2-tuxcare.2, plus listed versions 3.4.23.4.2-tuxcare.1 |
3.4.2-tuxcare.2 |
knockoutTuxCare:npm |
2.3.0-tuxcare.0 up to 2.3.0-tuxcare.2, plus listed versions 2.3.02.3.0-tuxcare.1 |
2.3.0-tuxcare.2 |
knockoutTuxCare:npm |
3.2.0-tuxcare.0 up to 3.2.0-tuxcare.1, plus listed versions 3.2.0 |
3.2.0-tuxcare.1 |
node-knockoutDebian:12 |
before 3.4.2-3 | 3.4.2-3 |
node-knockoutDebian:13 |
before 3.4.2-3 | 3.4.2-3 |
node-knockoutDebian:14 |
before 3.4.2-3 | 3.4.2-3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-14862 is a medium vulnerability (CVSS 6.1) in Knockoutjs Knockout, published January 2, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.05%, the 81st percentile. Fixed in knockout 3.5.0.
References
oracle.com/security-alerts/cpujul2020.html
bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14862
snyk.io/vuln/npm:knockout:20180213
nvd.nist.gov/vuln/detail/CVE-2019-14862
Show 8 moreShow less
github.com/knockout/knockout/issues/1244
whitesourcesoftware.com/vulnerability-database/WS-2019-0015
security-tracker.debian.org/tracker/CVE-2019-14862
ubuntu.com/security/CVE-2019-14862
cve.org/CVERecord?id=CVE-2019-14862