Medium severity · published Dec 16, 2021
CVE-2021-45085
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an about: page, as demonstrated by ephy-about:overview when a user visits an XSS payload page often…
6.1
CVSS
1.6%
EPSS
No
On KEV
Description
XSS can occur in GNOME Web (aka Epiphany) before 40.4 and 41.x before 41.1 via an about: page, as demonstrated by ephy-about:overview when a user visits an XSS payload page often enough to place that page on the Most Visited list.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 76% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0; 11.0 · source: NVD
EP
Epiphany · Gnome
before 40.4; 41.0 before 41.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45085
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45085
Exploit
https://gitlab.gnome.org/GNOME/epiphany/-/issues/1612
Patch
https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/1045
Mailing List
https://lists.debian.org/debian-lts-announce/2022/08/msg00006.html
Third Party Advisory
https://www.debian.org/security/2022/dsa-5042
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