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5.3 Medium

CVE-2024-9398 By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if…

Description

By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

Affected products and versions

Product Affected versions Fixed in
Firefox 131 earliest → < 131 131
Firefox ESR 128.3 earliest → < 128.3 128.3
Thunderbird 131 earliest → < 131 131

References

Timeline

  1. Published
  2. Last modified

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