Not rated
CVE-2021-43528 Thunderbird unexpectedly enabled JavaScript in the composition area
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Thunderbird 91.4 | earliest → < 91.4.0 | 91.4.0 |
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