CVE-2022-22759
CRITICALFirefox < 97, Thunderbird < 91.6, Firefox ESR < 91.6 - XSS
Title source: llmDescription
If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document that e.g. had a JavaScript event handler - the event handler would have run despite the iframe's sandbox. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
References (4)
Core 4
Core References
Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1739957
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-04/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-05/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-06/
Scores
CVSS v3
9.6
EPSS
0.0033
EPSS Percentile
55.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-693
Status
published
Products (3)
mozilla/firefox
< 97.0
mozilla/firefox_esr
< 91.6
mozilla/thunderbird
< 91.6
Published
Dec 22, 2022
Tracked Since
Feb 18, 2026