What’s Vulnerable › Vulnerabilities

CVE-2021-47904: PhreeBooks 5.2.3 - Remote Code Execution

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-23 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• Phreesoft PhreeBooks: 5.2.3

References

• https://gist.github.com/joswr1ght/22f40787de19d80d110b37fb79ac3985
• https://www.exploit-db.com/exploits/46645
• https://www.exploit-db.com/exploits/49524
• https://www.phreesoft.com/
• https://www.vulncheck.com/advisories/phreebooks-remote-code-execution
• https://www.exploit-db.com/exploits/49524

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