CVE-2020-15174
Unpreventable top-level navigation
Description
### Impact The `will-navigate` event that apps use to prevent navigations to unexpected destinations [as per our security recommendations](https://www.electronjs.org/docs/tutorial/security) can be bypassed when a sub-frame performs a top-frame navigation across sites. ### Patches * `11.0.0-beta.1` * `10.0.1` * `9.3.0` * `8.5.1` ### Workarounds Sandbox all your iframes using the [`sandbox` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#attr-sandbox). This will prevent them creating top-frame navigations and is good practice anyway. ### For more information If you have any questions or comments about this advisory: * Email us at security@electronjs.org
How to fix CVE-2020-15174
To remediate CVE-2020-15174, upgrade the affected package to a fixed version below.
- —upgrade to 8.5.1 or later
Is CVE-2020-15174 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 8.0.0-beta.0, < 8.5.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L |