CVE-2025-6435 — Save as in Devtools could download files without sanitizing the extension
If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the `.download` file extension. This co…
Published: 2025-06-24 · CVSS: 8.1 · CVSS 3.1
If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not have been saved with the `.download` file extension. This could have led to the user inadvertently running a malicious executable. This vulnerability was fixed in Firefox 140 and Thunderbird 140.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7