CVE-2026-72593
dulldusk phpfm - Missing Authentication by Default Allows Full Filesystem Access
Description
A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem.
INFO
Published Date :
Aug. 10, 2026, 11:17 a.m.
Last Modified :
Aug. 28, 2026, 6:51 p.m.
Remotely Exploit :
No
Source :
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE |
Solution
- Update dulldusk/phpfm to a version later than 1.8.0.
- Configure a strong authentication password.
- Ensure authentication checks are always enforced.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72593.
| URL | Resource |
|---|---|
| https://github.com/dulldusk/phpfm | |
| https://github.com/dulldusk/phpfm/blob/master/index.php |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72593 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72593
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72593 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72593 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 10, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-72593', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-10T13:25:25.433617Z'} -
CVE Modified by 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Aug. 10, 2026
Action Type Old Value New Value Changed Affected [{'vendor': 'dulldusk', 'product': 'phpfm', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.8.0', 'versionType': 'semver'}]}] [{'vendor': 'dulldusk', 'product': 'phpfm', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '1.8.0'}], 'defaultStatus': 'unknown'}] Changed Description A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem. The authentication check in index.php at line 637 evaluates 'if ($auth_pass == '' || $loggedon==$auth_pass)', and since auth_pass is an empty string in the default configuration, the condition always evaluates to true and grants full access without credentials. A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem. -
New CVE Received by 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'dulldusk', 'product': 'phpfm', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.8.0', 'versionType': 'semver'}]}] Added Description A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem. The authentication check in index.php at line 637 evaluates 'if ($auth_pass == '' || $loggedon==$auth_pass)', and since auth_pass is an empty string in the default configuration, the condition always evaluates to true and grants full access without credentials. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-306 Added Reference https://github.com/dulldusk/phpfm Added Reference https://github.com/dulldusk/phpfm/blob/master/index.php