CVE-2020-15653

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected software

No affected versions have been published.

Timeline

Published: Aug 10, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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