CVE-2020-11108

Name: CVE-2020-11108
Creator: NVD / NIST
Published: 2020-05-11T15:15:11.353+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 78.26%

Last modified Jun 17, 2026

CVE-2020-11108 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 78.26% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

78.26%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Pi-Hole	Pi-Hole	<= 4.4

References

http://packetstormsecurity.com/files/157623/Pi-hole-4.4-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/157624/Pi-hole-4.4-Remote-Code-Execution-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/157748/Pi-Hole-heisenbergCompensator-Blocklist-OS-Command-Execution.html
http://packetstormsecurity.com/files/157839/Pi-hole-4.4.0-Remote-Code-Execution.html
https://frichetten.com/blog/cve-2020-11108-pihole-rce/Exploit, Third Party Advisory
https://github.com/Frichetten/CVE-2020-11108-PoCExploit, Third Party Advisory
http://packetstormsecurity.com/files/157623/Pi-hole-4.4-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/157624/Pi-hole-4.4-Remote-Code-Execution-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/157748/Pi-Hole-heisenbergCompensator-Blocklist-OS-Command-Execution.html
http://packetstormsecurity.com/files/157839/Pi-hole-4.4.0-Remote-Code-Execution.html
https://frichetten.com/blog/cve-2020-11108-pihole-rce/Exploit, Third Party Advisory
https://github.com/Frichetten/CVE-2020-11108-PoCExploit, Third Party Advisory

Timeline

Published: May 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11108?

How severe is CVE-2020-11108?

CVE-2020-11108 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 78.26% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11108?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11108?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST