$ cve CVE-2020-11108 JSON

CVE-2020-11108 EXPLOIT

8.8

HIGH · CVSS 3.1 · EPSS 78.3% (pctl 100)

Patch early

A public exploit exists.

Description

The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files. This can be abused for Remote Code Execution by writing to a PHP file in the web directory. (Also, it can be used in conjunction with the sudo rule for the www-data user to escalate privileges to root.) The code error is in gravity_DownloadBlocklistFromUrl in gravity.sh.

Scoring

CVSS	8.8 (HIGH, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS	78.26% — more likely to be exploited than 100% of all CVEs
Weakness	CWE-434
On CISA KEV	no
Public exploit	yes
Published	2020-05-11
Last modified	2026-06-17

Affected (1)

Vendor	Product
pi-hole	pi-hole

Public exploits

Source	Title	Date
exploit-db	Pi-hole 4.4.0 - Remote Code Execution (Authenticated)	2020-05-26
exploit-db	Pi-Hole - heisenbergCompensator Blocklist OS Command Execution (Metasploit)	2020-05-19
exploit-db	Pi-hole < 4.4 - Authenticated Remote Code Execution	2020-05-10
exploit-db	Pi-hole < 4.4 - Authenticated Remote Code Execution / Privileges Escalation	2020-05-10

References

→ the Explorer · watch your stack · NVD