CVE-2021-43528

Description

Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.

Weakness classification

• nvd@nist.gov: CWE-269

Primary references

• security@mozilla.org — Broken Link, Issue Tracking, Permissions Required, Vendor Advisory
• security@mozilla.org — Mailing List, Third Party Advisory
• security@mozilla.org — Third Party Advisory
• security@mozilla.org — Issue Tracking, Third Party Advisory
• security@mozilla.org — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Broken Link, Issue Tracking, Permissions Required, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory