CVE-2022-22759 Information

Description

If a document created a sandboxed iframe without allow-scripts 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.

Reference

https://www.mozilla.org/security/advisories/mfsa2022-06/ https://www.mozilla.org/security/advisories/mfsa2022-05/ https://www.mozilla.org/security/advisories/mfsa2022-04/ https://bugzilla.mozilla.org/show_bug.cgi?id=1739957