CVE-2025-55030 Details
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.
A vulnerability exists in Firefox for iOS versions prior to 142, where the browser fails to properly handle Content-Disposition headers of type 'Attachment'. Instead of downloading the content, it displays it inline. This mismanagement could potentially lead to Cross-Site Scripting (XSS) attacks.
Users can upgrade to Firefox for iOS version 142 or later to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 20, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1976304 | [email protected] | Issue TrackingPermissions Required |
| https://www.mozilla.org/security/advisories/mfsa2025-68/ | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-640 | Weak Password Recovery Mechanism for Forgotten Password | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 142.0 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 13, 2026 | CVE Modified | [email protected] |
| Aug 21, 2025 | Initial Analysis | [email protected] |
| Aug 20, 2025 | CVE Modified | CISA-ADP |
| Aug 19, 2025 | New CVE Received | [email protected] |