What is CVE-2019-16728?

CVE-2019-16728 is a medium-severity vulnerability in Cure53 Dompurify, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-24.

How severe is CVE-2019-16728?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2019-16728 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Cure53 Dompurify

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-09-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.017 (75.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Cure53 Dompurify
Debian Linux — versions 9.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

imjdl/CVE-2019-16278-PoC

References

research.securitum.com/dompurify-bypass-using-mxss/ (Exploit, Third Party Advisory)
lists.debian.org/debian-lts-announce/2020/10/msg00029.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-16728?: CVE-2019-16728 is a medium-severity vulnerability in Cure53 Dompurify, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-09-24.
How severe is CVE-2019-16728?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2019-16728 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.