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Medium, CVSS 5.1amended

DOMPurify contains a Cross-site Scripting vulnerability

CVE-2025-15599GHSA-v8jm-5vwx-cfxm

What to do

Partial vendor fix. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm dompurify

    Affected
    >= 3.1.3, < 3.2.7>= 2.5.3, <= 2.5.8
    Fixed in
    3.2.7

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
5.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N · score source
EPSS
  • CVE-2025-15599: 0.29% estimated exploitation activity in the next 30 days; percentile 21.48 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

DOMPurify 3.1.3 through 3.2.6 and 2.5.3 through 2.5.8 contain a cross-site scripting vulnerability that allows attackers to bypass attribute sanitization by exploiting missing textarea rawtext element validation in the SAFEFORXML regex. Attackers can include closing rawtext tags like </textarea in attribute values to break out of rawtext contexts and execute JavaScript when sanitized output is placed inside rawtext elements. The 3.x branch was fixed in 3.2.7; the 2.x branch was never patched.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-v8jm-5vwx-cfxm

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-v8jm-5vwx-cfxm

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2025-15599

Advisory: DOMPurify contains a Cross-site Scripting vulnerability
IDs: CVE-2025-15599, GHSA-v8jm-5vwx-cfxm
Record: https://patchnext.com/advisories/cve-2025-15599 (revision 3, source checked 26 Oct 2026, 12:42 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: dompurify 3.2.7. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm dompurify: affected >= 3.1.3, < 3.2.7; >= 2.5.3, <= 2.5.8; fixed in 3.2.7

## Suggested inspection (read-only)
- `npm ls dompurify --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on dompurify.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-v8jm-5vwx-cfxm (OSV record GHSA-v8jm-5vwx-cfxm lists affected ranges: npm dompurify >=3.1.3 =2.5.3 <=2.5.8)
- Verified: https://github.com/advisories/GHSA-v8jm-5vwx-cfxm (GitHub-reviewed advisory GHSA-v8jm-5vwx-cfxm lists affected ranges: npm dompurify >=3.1.3 =2.5.3 <=2.5.8)

Commands are suggestions: review each one before running it.

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