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CVE-2025-55030

Medium

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 was fixed in Firefox for iOS 142.

SeverityMedium
CVSS6.1
Exploit probability—
ProductMozilla Firefox
PublishedAug 19, 2025
First seenAug 19, 2025
Weakness typeCWE-640CWE-640

How to fix

Update
  • mozilla firefox142.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 142.0142.0

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