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High, CVSS 8.1amended

Electron webPreferences vulnerability can be used to perform remote code execution

CVE-2018-15685GHSA-hv9c-qwqg-qj3v

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (electron 3.0.0-beta.7, 2.0.8, 1.8.8, 1.7.16), redeploy, then verify what is actually installed.

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 electron

    Affected
    >= 1.7.0, < 1.7.16>= 1.8.0, < 1.8.8>= 2.0.0, < 2.0.8>= 3.0.0-beta.1, < 3.0.0-beta.7
    Fixed in
    3.0.0-beta.7, 1.8.8, 2.0.8, 1.7.16

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
8.1 · CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
  • CVE-2018-15685: 10.30% estimated exploitation activity in the next 30 days; percentile 95.70 (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.

GitHub Electron 1.7.15, 1.8.7, 2.0.7, and 3.0.0-beta.6, in certain scenarios involving IFRAME elements and "nativeWindowOpen: true" or "sandbox: true" options, is affected by a webPreferences vulnerability that can be leveraged to perform remote code execution. More information to determine if you are impacted can be found on the electron blog. Recommendation Upgrade Electron to =3.0.0-beta.7, =2.0.8, =1.8.8, or =1.7.16.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-hv9c-qwqg-qj3v

  2. Revision 1 · created ·

    Published from osv record GHSA-hv9c-qwqg-qj3v

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-2018-15685

Advisory: Electron webPreferences vulnerability can be used to perform remote code execution
IDs: CVE-2018-15685, GHSA-hv9c-qwqg-qj3v
Record: https://patchnext.com/advisories/cve-2018-15685 (revision 2, source checked 26 Oct 2026, 12:16 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: electron 3.0.0-beta.7, 2.0.8, 1.8.8, 1.7.16. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm electron: affected >= 1.7.0, < 1.7.16; >= 1.8.0, < 1.8.8; >= 2.0.0, < 2.0.8; >= 3.0.0-beta.1, < 3.0.0-beta.7; fixed in 3.0.0-beta.7, 1.8.8, 2.0.8, 1.7.16

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

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on electron.
- 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-hv9c-qwqg-qj3v (OSV record GHSA-hv9c-qwqg-qj3v lists affected ranges: npm electron >=1.7.0 =1.8.0 =2.0.0 =3.0.0-beta.1 <3.0.0-beta.7 (fixed))
- Verified: https://github.com/advisories/GHSA-hv9c-qwqg-qj3v (GitHub-reviewed advisory GHSA-hv9c-qwqg-qj3v lists affected ranges: npm electron >=1.7.0 =1.8.0 =2.0.0 =3.0.0-beta.1 <3.0.0-beta.7)

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