What is CVE-2023-3393?

CVE-2023-3393 is a high-severity vulnerability in Fossbilling, classified under Code Injection. CVSS score: 7.2/10. Published 2023-06-23.

How severe is CVE-2023-3393?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Fossbilling

CVE-2023-3393

Code Injection in GitHub repository fossbilling/fossbilling prior to 0.5.1.

Vulnerability class: RCE (Remote Code Execution)

Published 2023-06-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.7th percentile), scored 2026-10-08.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Fossbilling
Fossbilling Fossbilling/fossbilling — versions unspecified

Weakness classification (CWE)

CWE-94 — Code Injection

References

huntr.dev/bounties/e4df9280-900a-407a-a07e-e7fef3345914 (Exploit, Patch, Third Party Advisory)
github.com/fossbilling/fossbilling/commit/47343fb58db5c17c14bc6941dacbeb9c96957… (Patch)

Frequently asked questions

What is CVE-2023-3393?: CVE-2023-3393 is a high-severity vulnerability in Fossbilling, classified under Code Injection. CVSS score: 7.2/10. Published 2023-06-23.
How severe is CVE-2023-3393?: High severity. CVSS v3 base score is 7.2 out of 10.