High severity8.8NVD Advisory· Published Jan 23, 2026· Updated Apr 15, 2026

CVE-2021-47904

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Phreesoft/Phreebookserpllm-fuzzy
Range: = 5.2.3

Patches

Vulnerability mechanics

References

gist.github.com/joswr1ght/22f40787de19d80d110b37fb79ac3985nvd
www.exploit-db.com/exploits/46645nvd
www.exploit-db.com/exploits/49524nvd
www.phreesoft.comnvd
www.vulncheck.com/advisories/phreebooks-remote-code-executionnvd

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