6.1

CVE-2026-109344: cure53 dompurify Cross-site Scripting

CVSS: 6.1v3.1MediumAwaiting analysis
AliasesGHSA-p98j-92pf-mc4pDEBIAN-CVE-2026-109344UBUNTU-CVE-2026-109344
Published 12-10-2026Last modified 13-10-2026
Open JSON

Vulnerability summary

CVE-2026-109344 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in cure53 dompurify. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 7.9% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-10-2026
    PublishedVulnerability first disclosed.
  2. 13-10-2026
    Last modifiedVulnerability information updated.

Description

DOMPurify from 3.4.13 before 3.4.16 contains a cross-site scripting vulnerability because IN_PLACE mode fails to neutralize subtrees detached by afterSanitizeElements or afterSanitizeAttributes hooks. Attackers can supply markup with on* handlers inside a wrapper removed by such hooks, leaving handlers armed on the live DOM to execute script in the victim origin.

CVSS metrics

8 scores · 5 sources · 2 versions

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

13-10-202619-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cure531 product
Debian1 product
  • node-dompurifyAll versions (No fix recorded) | < 3.4.16+dfsg-1
Npm1 product
  • dompurify≥ 3.4.13, < 3.4.16
Ubuntu1 product
  • node-dompurifyAll versions (No fix recorded)

4 vendors · 4 products

References

9 links