CVE-2019-16728
Cross-Site Scripting in dompurify
DOMPurify before 2.0.1 allows XSS because of innerHTML mutation XSS (mXSS) for an SVG element or a MATH element, as demonstrated by Chrome and Safari.
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
NVD Score used
DOMPurify before 2.0.1 allows XSS because of innerHTML mutation XSS (mXSS) for an SVG element or a MATH element, as demonstrated by Chrome and Safari.
- Record
CVE-2019-16728- 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 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
DOMPurify before 2.0.1 allows XSS because of innerHTML mutation XSS (mXSS) for an SVG element or a MATH element, as demonstrated by Chrome and Safari.
- Record
CVE-2019-16728- Updated
- 2026-11-02
EUVDEUVD-2020-0615 No score
DOMPurify before 2.0.1 allows XSS because of innerHTML mutation XSS (mXSS) for an SVG element or a MATH element, as demonstrated by Chrome and Safari.
- Record
EUVD-2020-0615- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-chqj-j4fh-rw7m
Cross-Site Scripting in dompurify
Versions of dompurify prior to 2.0.3 are vulnerable to Cross-Site Scripting (XSS). The package has an XSS filter bypass due to Mutation XSS in both Chrome and Safari through a combination of <svg>/<math> elements and </p>/</br>. An example payload is: <svg></p><style><a id="</style><img src=1 onerror=alert(1)>">. This allows attackers to bypass the XSS protection and execute arbitrary JavaScript in a victim's browser.
Recommendation
Upgrade to version 2.0.3 or later. You may also disallow <svg> and <math> through dompurify configurations:
FORBID_TAGS: ['svg', 'math']
});```
- Record
GHSA-chqj-j4fh-rw7m- 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
OSV
DOMPurify before 2.0.1 allows XSS because of innerHTML mutation XSS (mXSS) for an SVG element or a MATH element, as demonstrated by Chrome and Safari.
- Record
CVE-2019-16728- 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
OSVGHSA-chqj-j4fh-rw7m
Cross-Site Scripting in dompurify
Versions of dompurify prior to 2.0.3 are vulnerable to Cross-Site Scripting (XSS). The package has an XSS filter bypass due to Mutation XSS in both Chrome and Safari through a combination of <svg>/<math> elements and </p>/</br>. An example payload is: <svg></p><style><a id="</style><img src=1 onerror=alert(1)>">. This allows attackers to bypass the XSS protection and execute arbitrary JavaScript in a victim's browser.
Recommendation
Upgrade to version 2.0.3 or later. You may also disallow <svg> and <math> through dompurify configurations:
FORBID_TAGS: ['svg', 'math']
});```
- Record
GHSA-chqj-j4fh-rw7m- 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-2019-16728
DOMPurify before 2.0.1 allows XSS because of innerHTML mutation XSS (mXSS) for an SVG element or a MATH element, as demonstrated by Chrome and Safari.
- Record
UBUNTU-CVE-2019-16728- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
dompurifynpm |
before 2.0.3 | 2.0.3 |
dompurify.jsDebian:9 |
before 0.8.2~dfsg1-1+deb9u1, plus listed versions 0.8.2~dfsg1-1 |
0.8.2~dfsg1-1+deb9u1 |
dompurify.jsUbuntu:18.04:LTS |
All versions, plus listed versions 0.9.0~dfsg1-10.9.0~dfsg1-2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| 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-2019-16728 is a medium vulnerability (CVSS 6.1) in Cure53 Dompurify, published September 24, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.46%, the 73rd percentile. Fixed in dompurify 2.0.3.