Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 97.0 |
| Mozilla | Firefox Esr | < 91.6 |
| Mozilla | Thunderbird | < 91.6 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1739957Issue TrackingVendor 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/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1739957Issue TrackingVendor 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/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1739957Issue TrackingVendor Advisory
FAQ
What is CVE-2022-22759?
CVE-2022-22759 is a vulnerability with a CVSS score of 9.6 (CRITICAL). 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 ...
How severe is CVE-2022-22759?
CVE-2022-22759 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2022-22759?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.