CVE-2022-26384

9.6 criticalEPSS 1.0%

Critical (9.6) in mozilla. EPSS 1.0% chance of exploitation in the next 30 days.

If an attacker could control the contents of an iframe sandboxed with <code>allow-popups</code> but not <code>allow-scripts</code>, they were able to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

Severity

CVSS 3.1

9.6 critical

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

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
CWE: CWE-693
Published: 2022-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox
mozilla:firefox_esr
mozilla:thunderbird

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1744352
https://www.mozilla.org/security/advisories/mfsa2022-10/
https://www.mozilla.org/security/advisories/mfsa2022-11/
https://www.mozilla.org/security/advisories/mfsa2022-12/
https://bugzilla.mozilla.org/show_bug.cgi?id=1744352

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