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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.009 (56.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Pi-Hole — versions 5.0, 5.1, 5.1.1
Weakness classification (CWE)
References
- discourse.pi-hole.net/c/announcements/5 (Release Notes, Vendor Advisory)
- n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/ (Exploit, Third Party Advisory)
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.