Medium severity · published Feb 18, 2021
CVE-2020-35592
Pi-hole 5.0, 5.1, and 5.1.1 allows XSS via the Options header to the admin/ URI
5.4
CVSS
0.9%
EPSS
No
On KEV
Description
Pi-hole 5.0, 5.1, and 5.1.1 allows XSS via the Options header to the admin/ URI. A remote user is able to inject arbitrary web script or HTML due to incorrect sanitization of user-supplied data and achieve a Reflected Cross-Site Scripting attack against other users and steal the session cookie.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PI
Pi-hole · Pi-hole
5.0; 5.1; 5.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35592
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-35592
Release Notes
https://discourse.pi-hole.net/c/announcements/5
Exploit
https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/
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