ByteOS Network

NVD Vulnerability Details :

CVE-2026-55578

Received

Source-security-advisories@github.com

Published At-27 Jul, 2026 | 18:16

Updated At-27 Jul, 2026 | 18:16

Pheditor is a single-file editor and file manager written in PHP. From version 2.0.1 to before version 2.0.6, the terminal feature in Pheditor uses an incomplete character blocklist to sanitize user-supplied commands before passing them to shell_exec(). After the fix for GHSA-9643-6xjp-vx57 (which added $ to the blocklist), the characters | (single pipe), ` (backtick), and the newline byte (0x0A) remain unblocked. An authenticated user with the terminal permission (enabled by default) can leverage any of these to bypass the TERMINAL_COMMANDS allowlist and execute arbitrary OS commands as the web server user. This issue has been patched in version 2.0.6.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Type: Secondary

Version: 3.1

Base score: 8.8

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-78	Primary	security-advisories@github.com

CWE ID: CWE-78

Type: Primary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/advisories/GHSA-9643-6xjp-vx57	security-advisories@github.com	N/A
https://github.com/pheditor/pheditor/releases/tag/2.0.6	security-advisories@github.com	N/A
https://github.com/pheditor/pheditor/security/advisories/GHSA-wg4w-wr5q-6vjc	security-advisories@github.com	N/A