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In Reader View SameSite cookie protections are not checked on exiting. This allows for a payload to be triggered when Reader View is exited if loaded by a malicious site while Reader mode is active, bypassing CSRF protections. This vulnerability affects Firefox < 61.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Oct 18, 2018 |
| Freebsd | — | Upgrade firefoxUpgrade waterfoxUpgrade libxulUpgrade linux-firefoxUpgrade seamonkeyUpgrade thunderbirdUpgrade linux-seamonkeyUpgrade firefox-esrUpgrade linux-thunderbird | Jun 27, 2018 | Jun 26, 2018 |
| Gentoo Linux | — | Upgrade www-client/firefox.Upgrade www-client/firefox-bin. | Oct 3, 2018 | Oct 2, 2018 |
| Mfsa2018 15 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 61.0 | Jun 27, 2018 | Jun 26, 2018 |
| Ubuntu | — | Upgrade firefox | Jul 12, 2018 | Jun 26, 2018 |
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