CVE-2024-39457Network attack vector

Script execution via PDF preview XSS

Published Jul 19, 2024 · Updated Mar 19, 2025

Cross-site scripting in PDF preview in Cybozu Garoon 6.0.0 through 6.0.1 allows attackers to execute script in a logged-in browser. Cybozu and JPCERT/CC have not disclosed the preview-processing locus or the incorrect operation performed on untrusted PDF content. A logged-in user must interact with the affected preview; no service interruption is reported.

CVSS severity7.4
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in PDF preview in Cybozu Garoon 6.0.0 through 6.0.1 allows attackers to execute script in a logged-in browser. Cybozu and JPCERT/CC have not disclosed the preview-processing locus or the incorrect operation performed on untrusted PDF content. A logged-in user must interact with the affected preview; no service interruption is reported.

The record

CVE
CVE-2024-39457
Published
Jul 19, 2024
Updated
Mar 19, 2025
Vendor
Cybozu
Product
Garoon
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.0.0 to 6.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cybozu · Garoonversion=6.0.0 to 6.0.1

Published CVSS scores

7.4JPCERT/CCCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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