CVE-2021-47904
PhreeBooks 5.2.3 - Remote Code Execution
- State
- Published
- Severity
- 8.7 High
- Published
- Jan 23, 2026
- Updated
- Jul 28, 2026
- Reserved
- Jan 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products
| Product | Versions |
|---|---|
PhreeBooksPhreesoft |
|
References
- ExploitDB-49524exploit
- Official Vendor Homepageproduct
- ExploitDB-46645exploit
- Web Shell Payload Gistproduct
- VulnCheck Advisory: PhreeBooks 5.2.3 - Remote Code Executionthird-party-advisory
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