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.
CVSS Details
- CVSS 3.1 Base Score: 6.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefox-x11Upgrade firefoxUpgrade thunderbird | Jul 2, 2025 | Jun 24, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade firefox | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfo | Jul 11, 2025 | Jun 24, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jun 26, 2025 | Jun 24, 2025 |
| Freebsd | — | Upgrade firefox | Jul 5, 2025 | Jul 4, 2025 |
| Mfsa2025 51 | — | Upgrade to Mozilla Firefox version 140.0 | Jun 25, 2025 | Jun 24, 2025 |
| Mfsa2025 53 | — | Upgrade to Mozilla Firefox ESR version 128.12 | Jun 25, 2025 | Jun 24, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.12 | Jul 3, 2025 | Jun 24, 2025 |
| Oracle_linux | — | Upgrade firefox-x11Upgrade firefox | Jul 3, 2025 | Jun 24, 2025 |
| Redhat_linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoNo solution existsUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade firefox-x11 | Jul 2, 2025 | Jun 24, 2025 |
| Rocky_linux | — | Upgrade firefox-debugsourceUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfoUpgrade thunderbird-debugsourceUpgrade firefoxUpgrade firefox-x11 | Feb 5, 2026 | Jul 29, 2025 |
| Suse | — | Upgrade pipewire-spa-toolsUpgrade xdg-desktop-portalUpgrade gstreamer-plugin-pipewireUpgrade pipewire-langUpgrade xdg-desktop-portal-langUpgrade pipewire-spa-plugins-0_2Upgrade pipewire-toolsUpgrade xdg-desktop-portal-develUpgrade pipewire-modulesUpgrade mozillafirefox-branding-sleUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefoxUpgrade pipewireUpgrade MozillaThunderbird-translations-otherUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-otherUpgrade pipewire-modules-0_3Upgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-commonUpgrade libpipewire-0_3-0Upgrade MozillaThunderbird | Jun 27, 2025 | Jun 24, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Jun 24, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub