What is CVE-2024-39457?

CVE-2024-39457 is a medium-severity vulnerability in Cybozu Garoon, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-07-19.

How severe is CVE-2024-39457?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Cybozu Garoon

CVE-2024-39457

Cybozu Garoon 6.0.0 to 6.0.1 contains a cross-site scripting vulnerability in PDF preview. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user’s web browser.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-07-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.6th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 14.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Cybozu Garoon
Cybozu, Inc. Cybozu Garoon — versions 6.0.0 to 6.0.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

kb.cybozu.support/ (Vendor Advisory)
jvn.jp/en/jp/JVN74825766/ (Third Party Advisory)

Frequently asked questions

What is CVE-2024-39457?: CVE-2024-39457 is a medium-severity vulnerability in Cybozu Garoon, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-07-19.
How severe is CVE-2024-39457?: Medium severity. CVSS v3 base score is 5.4 out of 10.