CVE-2022-26384

CRITICAL

Firefox <98, Firefox ESR <91.7, Thunderbird <91.7 - XSS

Title source: llm

Description

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.

References (4)

[Exploit, Issue Tracking, Vendor Advisory] https://bugzilla.mozilla.org/show_bug.cgi?id=1744352

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2022-10/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2022-11/

[Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2022-12/

Scores

CVSS v3 9.6

EPSS 0.0012

EPSS Percentile 30.9%

Attack Vector NETWORK

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

Classification

CWE

CWE-693

Status published

Affected Products (3)

mozilla/firefox < 98.0

mozilla/firefox_esr < 91.7

mozilla/thunderbird < 91.7

Timeline

Published Dec 22, 2022

Tracked Since Feb 18, 2026