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CVE

CVE-2026-55579

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

CVE-2026-55579

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

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://github.com/pheditor/pheditor/releases/tag/2.0.6, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55579.json, https://github.com/pheditor/pheditor/security/advisories/GHSA-p4h7-p9rj-2pq2, https://nvd.nist.gov/vuln/detail/CVE-2026-55579

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00792%
EPSS Percentile
0.55355%
Introduced Version
44378852dbc5fe07893a09f2b59648fadbed1ce1
Fix Available
a64eb935ce699e43f1ea60e46d47f33e2f87ffd6

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