CVE-2021-43541

Summary

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Affected Software

VendorProductVersion RangeStatus
MozillaThunderbirdunspecified < 91.4.0affected
MozillaFirefox ESRunspecified < 91.4.0affected
MozillaFirefoxunspecified < 95affected

Weaknesses

  • External protocol handler parameters were unescaped

ADP Enrichment

CVE Program Container

Additional References

References