CVE-2021-43528

Summary

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 Software

VendorProductVersion RangeStatus
MozillaThunderbirdunspecified < 91.4.0affected

Weaknesses

  • JavaScript unexpectedly enabled for the composition area

ADP Enrichment

CVE Program Container

Additional References

References