What’s Vulnerable › Vulnerabilities

CVE-2020-35592

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-02-18 · updated 2026-06-17
• Weakness: CWE-79

Description

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.

Affected products

• pi-hole: 5.0, 5.1, 5.1.1

References

• https://discourse.pi-hole.net/c/announcements/5
• https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/
• https://discourse.pi-hole.net/c/announcements/5
• https://n4nj0.github.io/advisories/pi-hole-multiple-vulnerabilities-i/

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