CVE-2026-16397

MEDIUM
Published Jul 21, 2026 Modified Jul 21, 2026 CWE-1021

Description

Clickjacking issue in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 153.

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CVSS v3.1 Score

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

Weakness Type (CWE)

CWE-1021 CWE-1021

References

Frequently Asked Questions

What is CVE-2026-16397? +
Clickjacking issue in the WebExtensions component in Firefox for Android. This vulnerability was fixed in Firefox 153. It has a CVSS v3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2026-16397? +
CVE-2026-16397 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
How do I check if I'm vulnerable to CVE-2026-16397? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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