- Description
- 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 affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
- Source
- security@mozilla.org
- NVD status
- Modified
- Products
- firefox
CVSS 3.1
- Type
- Secondary
- Base score
- 6.1
- Impact score
- 2.7
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Severity
- MEDIUM
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
- CWE-79
- Hype score
- Not currently trending
Top 5 Trending CVEs: 1 - CVE-2025-32711 2 - CVE-2024-51978 3 - CVE-2025-6430 4 - CVE-2025-32433 5 - CVE-2020-9547 #cve #cvetrends #cveshield #cybersecurity https://t.co/4Fua3CAN6W
@CVEShield
29 Jun 2025
14 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🦊 Mozilla Foundation fixed CVE-2025-6430, discovered by our researcher Daniil Satyaev! This vulnerability allows the Content-Disposition: attachment header to be ignored if the page is opened using <embed> or <object>, resulting in files being displayed instead of
@ptswarm
27 Jun 2025
12815 Impressions
34 Retweets
173 Likes
54 Bookmarks
3 Replies
3 Quotes
CVE-2025-6430 Cross-Site Scripting Vulnerability in Firefox via Content-Disposition Header Bypass https://t.co/MR72co1TzE
@VulmonFeeds
24 Jun 2025
51 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
CVE-2025-6430 When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `&lt;embed&gt;` or `&lt;object&gt… https://t.co/RAyhBY1jNi
@CVEnew
24 Jun 2025
404 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
[
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
"matchCriteriaId": "18420C6D-A5DF-41A4-8A81-F1BBFBA1BE2A",
"versionEndExcluding": "128.12.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
"matchCriteriaId": "77D2BF2A-26A3-4664-93B5-B41BCF17AC9E",
"versionEndExcluding": "140.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
]