What is CVE-2023-39448?

CVE-2023-39448 is a high-severity vulnerability in Shirasagi Project, classified under Path Traversal. CVSS score: 8.8/10. Published 2023-09-05.

How severe is CVE-2023-39448?

High severity. CVSS v3 base score is 8.8 out of 10.

Path Traversal in Shirasagi Project

CVE-2023-39448

Path traversal vulnerability in SHIRASAGI prior to v1.18.0 allows a remote authenticated attacker to alter or create arbitrary files on the server, resulting in arbitrary code execution.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2023-09-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.013 · change: +0.002

Affected products

Shirasagi Project — versions prior to v1.18.0
Ss-Proj Shirasagi

Weakness classification (CWE)

CWE-22 — Path Traversal

References

www.ss-proj.org/support/954.html (Patch, Vendor Advisory)
jvn.jp/en/jp/JVN82758000/ (Third Party Advisory)

Frequently asked questions

What is CVE-2023-39448?: CVE-2023-39448 is a high-severity vulnerability in Shirasagi Project, classified under Path Traversal. CVSS score: 8.8/10. Published 2023-09-05.
How severe is CVE-2023-39448?: High severity. CVSS v3 base score is 8.8 out of 10.