What’s Vulnerable › Vulnerabilities

CVE-2026-55579: Pheditor: Hardcoded default password 'admin' with no forced change enables full application compromise

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-27 · updated 2026-07-27
• Weakness: CWE-798

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.

Affected products

• pheditor: from 2.0.1, < 2.0.6

References

• https://github.com/pheditor/pheditor/releases/tag/2.0.6
• https://github.com/pheditor/pheditor/security/advisories/GHSA-p4h7-p9rj-2pq2
• https://github.com/pheditor/pheditor/security/advisories/GHSA-p4h7-p9rj-2pq2

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