CVE-2020-35659

MediumCVSS 6.1/10Last modified Jun 17, 2026

Description

The DNS query log in Pi-hole before 5.2.2 is vulnerable to stored XSS. An attacker with the ability to directly or indirectly query DNS with a malicious hostname can cause arbitrary JavaScript to execute when the Pi-hole administrator visits the Query Log or Long-term data Query Log page.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://blog.mirch.io/2020/12/24/pihole-xss/Third Party Advisory
https://discourse.pi-hole.net/t/pi-hole-core-web-v5-2-2-and-ftl-v5-3-3-released/41998Release Notes, Vendor Advisory
https://github.com/pi-hole/AdminLTE/pull/1665Patch, Third Party Advisory
https://blog.mirch.io/2020/12/24/pihole-xss/Third Party Advisory
https://discourse.pi-hole.net/t/pi-hole-core-web-v5-2-2-and-ftl-v5-3-3-released/41998Release Notes, Vendor Advisory
https://github.com/pi-hole/AdminLTE/pull/1665Patch, Third Party Advisory

Timeline

Published: Dec 24, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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