CVE-2026-75838

DOMPurify before 3.4.13 contains a cross-site scripting vulnerability in IN_PLACE sanitization where element-removal hooks fail to neutralize detached subtrees. Attackers can supply HTML with event handlers on descendant elements that execute after sanitization completes, even though the returned root appears clean.

CVSS 4.0

5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-08-18

Modified

2026-10-22

Record from

the NVD, synced 2026-10-23

Packages (OSV)

References

• https://github.com/cure53/DOMPurify/security/advisories/GHSA-55q2-fjhq-7xh7
• https://www.vulncheck.com/advisories/dompurify-before-cross-site-scripting-via-in-place-hook
• https://github.com/cure53/DOMPurify/security/advisories/GHSA-55q2-fjhq-7xh7

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