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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| cure53 | DOMPurify | 3.4.13 – < 3.4.16 | 3.4.16 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | node-dompurify | 3.4.16+dfsg-1 | — |
| Debian 13 | node-dompurify | No fix yet | — |
| Debian 12 | node-dompurify | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-dompurify | No fix yet | — |
| Ubuntu 26.04 LTS | node-dompurify | No fix yet | — |
| Ubuntu 24.04 LTS | node-dompurify | No fix yet | — |
| Ubuntu 22.04 LTS | node-dompurify | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | dompurify | >= 3.4.13, < 3.4.16 | 3.4.16 | GHSA-p98j-92pf-mc4p |
References
- GitHub Security Advisory (GHSA-p98j-92pf-mc4p) vendor-advisory
- VulnCheck Advisory: DOMPurify from 3.4.13 before 3.4.16 DOM XSS via IN_PLACE afterSanitize Hooks third-party-advisory