High severity · published Apr 15, 2021
CVE-2021-29448
Stored DOM XSS in Pi-hole Admin Web Interface
8.8
CVSS
0.7%
EPSS
No
On KEV
Description
Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which can be exploited by the malicious actor with the network access to DNS server. See the referenced GitHub security advisory for patch details.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AD
AdminLTE · pi-hole
<= 5.4 · source: vendor
FT
Ftldns · Pi-hole
5.7 · source: NVD
PI
Pi-hole · Pi-hole
5.2.4 · source: NVD
WI
Web Interface · Pi-hole
before 5.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-29448
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-29448
Exploit
https://github.com/pi-hole/AdminLTE/security/advisories/GHSA-cwwf-93p7-73j9
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