CVE-2025-55030 – Firefox for iOS MIME Type Misinterpretation Vulnerability

The following table lists the changes that have been made to the
CVE-2025-55030 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Aug. 19, 2025

    Action Type Old Value New Value
    Added Description Firefox for iOS would not respect a Content-Disposition header of type Attachment and would incorrectly display the content inline rather than downloading, potentially allowing for XSS attacks This vulnerability affects Firefox for iOS < 142.
    Added Reference https://bugzilla.mozilla.org/show_bug.cgi?id=1976304
    Added Reference https://www.mozilla.org/security/advisories/mfsa2025-68/
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