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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2018-12370 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 4.7 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | Required |
Scope | Changed |
Confidentiality | Low |
Integrity Impact | None |
Availability Impact | None |
Platform | Package | State |
---|---|---|
Red Hat Enterprise Linux 7 | thunderbird | Not affected |
Red Hat Enterprise Linux 7 | firefox | Not affected |
Red Hat Enterprise Linux 6 | firefox | Not affected |
Red Hat Enterprise Linux 6 | thunderbird | Not affected |