High severity · published Mar 20, 2021
CVE-2021-28117
libdiscover/backends/KNSBackend/KNSResource.cpp in KDE Discover before 5.21.3 automatically creates links to potentially dangerous URLs (that are neither https:// nor http://)…
7.5
CVSS
1.6%
EPSS
No
On KEV
Description
libdiscover/backends/KNSBackend/KNSResource.cpp in KDE Discover before 5.21.3 automatically creates links to potentially dangerous URLs (that are neither https:// nor http://) based on the content of the store.kde.org web site. (5.18.7 is also a fixed version.)
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DI
Discover · Kde
before 5.21.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28117
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28117
Patch
https://github.com/KDE/discover/commit/fcd3b30552bf03a384b1a16f9bb8db029c111356
Third Party Advisory
https://github.com/KDE/discover/releases
Patch
https://invent.kde.org/plasma/discover/commit/94478827aab63d2e2321f0ca9ec5553718798e60
Patch
https://kde.org/info/security/advisory-20210310-1.txt
Product
https://userbase.kde.org/Discover