CVE-2020-11108 File upload in n/a
An authenticated attacker can upload arbitrary files to execute code and escalate privileges to root via the Gravity updater.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-11108?
CVE-2020-11108 is a high-severity vulnerability in n/a, published on 11 May 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-434
Which versions are affected by CVE-2020-11108?
It affects 1 product.
Products include Pi-Hole Pi-Hole.
How do I fix CVE-2020-11108?
No fix has been published for CVE-2020-11108 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-11108 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-11108 exists.
Public exploit code: 1 Metasploit module, 4 Exploit-DB entries and 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
- CVE-2020-8816 Pi-Hole AdminLTE Remote Code Execution
- CVE-2025-34087 Pi-Hole AdminLTE Whitelist (now 'Web Allowlist') Remote Command Execution
- CVE-2026-50130 Pi-hole: Local privilege escalation from `pihole` user to root via `/etc/pihole/logrotate`
- CVE-2019-13051 Pi-Hole 4.3 allows Command Injection.
- CVE-2024-34361 Pi-hole Blind Server-Side Request Forgery (SSRF) vulnerability can lead to Remote Code Execution (RCE)
Sources
Also known as GHSA-xm4h-5598-382p.