CVE-2021-32706
high-risk
Published 2021-08-04
Pi-hole's Web interface provides a central location to manage a Pi-hole instance and review performance statistics. Prior to Pi-hole Web interface version 5.5.1, the `validDomainWildcard` preg_match filter allows a malicious character through that can be used to execute code, list directories, and overwrite sensitive files. The issue lies in the fact that one of the periods is not escaped, allowing any character to be used in its place. A patch for this vulnerability was released in version 5.5.1.
Do I need to act?
!
61.0% chance of exploitation in next 30 days
EPSS score — higher than 39% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.6/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (4)
Release Notes
https://github.com/pi-hole/AdminLTE/releases/tag/v5.5.1
Release Notes
https://github.com/pi-hole/AdminLTE/releases/tag/v5.5.1
51
/ 100
high-risk
Severity
27/34 · High
Exploitability
19/34 · Moderate
Exposure
5/34 · Minimal