Which products and versions are affected by CVE-2020-11108?

Affected: Pi-Hole. The full list is in the CVE brief.

Is CVE-2020-11108 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2020-11108 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2020-11108?

Public exploit code is available.

Is there a fix for CVE-2020-11108?

Fixed versions are available, including Pi-Hole <=4.4, Pi-Hole 4.4.

How urgently should CVE-2020-11108 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2020-11108

Q: What is CVE-2020-11108?

The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files.

Q: How urgently should CVE-2020-11108 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

HighPublic exploit

The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files.

Published May 11, 2020 · Updated Aug 7, 2026

Key Facts

Patch immediately

CVE-2020-11108 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Pi-Hole.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 78% probability of exploitation in the next 30 days.
Fixed versions are available, including Pi-Hole <=4.4, Pi-Hole 4.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

8.8

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

EPSS (30-day exploit likelihood)

78%

Higher than 99.5% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2020-11108 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Pi-HolePi-Hole	See advisory	4.4

Patched Releases

Pi-Hole

<=4.4

Timeline

Publicly disclosed
May 11, 2020
Last updated
Aug 7, 2026

Weakness Type

CWE-434 Unrestricted Upload of File with Dangerous Type

References

6 more references in the full CVE brief

FAQ

Common Questions.

The Gravity updater in Pi-hole through 4.4 allows an authenticated adversary to upload arbitrary files.
Affected: Pi-Hole. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Pi-Hole <=4.4, Pi-Hole 4.4.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2020-11108 Running On Your Attack Surface?

Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.

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