What is CVE-2020-35592?

CVE-2020-35592 is a medium-severity vulnerability in Pi-Hole, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-02-18.

How severe is CVE-2020-35592?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Pi-Hole

CVE-2020-35592

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (54.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Pi-hole — versions 5.0, 5.1, 5.1.1
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-35592?: CVE-2020-35592 is a medium-severity vulnerability in Pi-Hole, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-02-18.
How severe is CVE-2020-35592?: Medium severity. CVSS v3 base score is 5.4 out of 10.