6.1

CVE-2026-65914: cure53 dompurify Cross-site Scripting

CVSS: 6.1v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-65914DEBIAN-CVE-2026-65914GHSA-h8r8-wccr-v5f2
Published 23-07-2026Last modified 23-07-2026
Open JSON

Vulnerability summary

CVE-2026-65914 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in cure53 dompurify. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.31%
0%100%
Low · +0.10 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
OPENSUSE-SU-2026:12070-1RHSA-2026:54517RHSA-2026:58500CGA-95H8-RR7H-RW9C

Timeline

  1. 23-07-2026
    PublishedVulnerability first disclosed.
  2. 23-07-2026
    Last modifiedVulnerability information updated.

Description

DOMPurify before 3.3.2 contains a mutation-XSS vulnerability when sanitized HTML is reinserted into special parsing contexts using innerHTML with wrappers like script, xmp, iframe, noembed, noframes, or noscript. Attackers can craft payloads with closing sequences that break out of the wrapper context during reparsing, reactivating dangerous markup with event handlers to execute JavaScript.

CVSS metrics

8 scores · 6 sources · 2 versions

EPSS trend

Probability

0.31%

Chance of exploitation in the next 30 days

Percentile

22%

Versus all other CVEs

30-day change

+0.10 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.31%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Dompurify

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard18 products
  • airflow-2All versions (No fix recorded)
  • airflow-core-2All versions (No fix recorded)
  • gitlab-rails-ce-18.1All versions (No fix recorded)
  • gitlab-rails-ce-18.5All versions (No fix recorded)
  • gitlab-rails-ce-18.6All versions (No fix recorded)
Cure531 product
Debian1 product
  • node-dompurifyAll versions (No fix recorded) | < 3.3.2+dfsg-1
Npm1 product
  • dompurify< 3.3.2
Ubuntu1 product
  • node-dompurifyAll versions (No fix recorded)

5 vendors · 22 products

References

9 links