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CVE

CWE

Training

CVE-2021-47904

Published: Jan 23, 2026

Modified: Apr 7, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

Description

PhreeBooks 5.2.3 contains an authenticated file upload vulnerability in the Image Manager that allows remote code execution. Attackers can upload a malicious PHP web shell by exploiting unrestricted file type uploads to gain command execution on the server.

Vendor	Product	Versions
Phreesoft	PhreeBooks	affected `5.2.3`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

ExploitDB-49524

exploit

Official Vendor Homepage

product

ExploitDB-46645

exploit

Web Shell Payload Gist

product

VulnCheck Advisory: PhreeBooks 5.2.3 - Remote Code Execution

third-party-advisory

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