CVE-2026-55579

CRITICAL

Pheditor: Hardcoded default password 'admin' with no forced change enables full application compromise

Title source: cna
STIX 2.1

Description

Pheditor is a single-file editor and file manager written in PHP. From version 2.0.1 to before version 2.0.6, Pheditor ships with a hardcoded default password admin (SHA-512 hash stored at pheditor.php:11). There is no mechanism to force a password change on first login. Any deployment using the default credentials grants an attacker full access to the file editor, file upload, and terminal features, enabling arbitrary file read/write and remote code execution. This issue has been patched in version 2.0.6.

References (2)

Core 2
Core References

Scores

CVSS v3 9.8
EPSS 0.0060
EPSS Percentile 45.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-798
Status published
Products (1)
pheditor/pheditor >= 2.0.1, < 2.0.6
Published Jul 27, 2026
Tracked Since Jul 28, 2026