Description
DOMPurify before 3.4.16 contains a cross-site scripting vulnerability that allows attackers to bypass sanitization because IN_PLACE mode returns a force-removed style element whose text content still carries markup. Attackers can supply a style element containing a closing style tag and an img onerror payload, which executes script when the application serializes and re-parses the returned node.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| cure53 | DOMPurify | < 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 | < 3.4.16 | 3.4.16 | GHSA-6688-9rhm-gjv2 |
References
- GitHub Security Advisory (GHSA-6688-9rhm-gjv2) vendor-advisory
- VulnCheck Advisory: DOMPurify before 3.4.16 XSS via IN_PLACE Returned Rawtext Root third-party-advisory