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A "data:" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when "data:" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jun 11, 2018 |
| Freebsd | — | Upgrade firefoxUpgrade libxulUpgrade seamonkeyUpgrade firefox-esrUpgrade linux-thunderbirdUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade linux-firefox | Nov 14, 2017 | Nov 14, 2017 |
| Mfsa2017 24 | — | Upgrade to Mozilla Firefox version 57.0Upgrade to the latest version of Mozilla Firefox | Nov 15, 2017 | Nov 14, 2017 |
| Suse | — | Upgrade MozillaFirefox-translations-otherUpgrade MozillaFirefoxUpgrade MozillaFirefox-translations-common | May 20, 2018 | Nov 14, 2017 |
| Ubuntu | — | Upgrade firefox | Nov 16, 2017 | Nov 14, 2017 |
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