CVE-2025-6430 (GCVE-0-2025-6430)
Vulnerability from cvelistv5 – Published: 2025-06-24 12:28 – Updated: 2026-04-13 14:30
VLAI
EPSS
VEX
Title
Content-Disposition header ignored when a file is included in an embed or object tag
Summary
When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability was fixed in Firefox 140, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-25 14:21 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
7 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
128.12 , ≤ 128.*
(rpm)
Unaffected: 140 , ≤ * (rpm) |
guessed | |
| Mozilla | Thunderbird |
Unaffected:
128.12 , ≤ 128.*
(rpm)
Unaffected: 140 , ≤ * (rpm) |
guessed |
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| Author | Source | Type | Date | Other |
|---|
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