cbcvebase.
CVE-2021-29971
published 2021-08-05

CVE-2021-29971: If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted…

PriorityP344critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
1.02%
59.6th percentile
If a user had granted a permission to a webpage and saved that grant, any webpage running on the same host - irrespective of scheme or port - would be granted that permission. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 90.

Affected

4 ranges
VendorProductVersion rangeFixed in
debianfirefox
mozillafirefox< 90.090.0
mozillafirefox
mozillafirefox>= unspecified < 9090

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8LOW
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.