Vulnerability · Published Aug 4, 2021 · Assigned by GitHub_M
CVE-2021-32793Stored XSS Vulnerability in the Pi-hole Webinterface
Medium 5.7
In plain English
A medium-severity cross-site scripting in AdminLTE from pi-hole. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities).
Official description
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 function to add domains to blocklists or allowlists is vulnerable to a stored cross-site-scripting vulnerability. User input added as a wildcard domain to a blocklist or allowlist is unfiltered in the web interface. Since the payload is stored permanently as a wildcard domain, this is a persistent XSS vulnerability. A remote attacker can therefore attack administrative user accounts through client-side attacks. Pi-hole Web Interface version 5.5.1 contains a patch for this vulnerability.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:H
References
- https://github.com/pi-hole/AdminLTE/releases/tag/v5.5.1 x_refsource_MISC
- https://github.com/pi-hole/AdminLTE/security/advisories/GHSA-g3w6-q4fg-p8x8 x_refsource_CONFIRM