Description
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.6, Electron treated pages opened into a new window from links as application-initiated navigations instead of preserving the page containing the link as the initiator. The resulting top-level request could be classified as same-site, causing SameSite=Strict cookies to be sent and Sec-Fetch-Site not to identify the initiating page. An application that loads untrusted content and permits it to open new windows could therefore allow that content to make a credentialed request to another site that relies on SameSite cookies for CSRF protection. This issue is fixed in versions 42.11.3, 43.7.0, 44.3.0, and 45.0.0-alpha.6.
References10
- github.com/electron/electron/commit/079b9b1594ee62c336adc3aa430…
- github.com/electron/electron/commit/0e6aca0618eeae50a18cfd50548…
- github.com/electron/electron/commit/652ef79ac79c6767b31e59b2f28…
- github.com/electron/electron/commit/98940cb274bb6adcb7cdb2da2d4…
- github.com/electron/electron/commit/a86ae4205ba2ba7ae60a6caa9d5…
- github.com/electron/electron/pull/53683
- github.com/electron/electron/pull/53717
- github.com/electron/electron/pull/53718
- github.com/electron/electron/pull/53719
- github.com/electron/electron/pull/53721
Metrics
- CVSS 3.1
-
4.2
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 12 · as of 8 November 2026
- CWE
- CWE-352
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.