CVE-2026-36762Public exploitNetwork attack vector

Authenticated arbitrary file write via unsanitized upload path

Published Apr 30, 2026 · Updated Apr 30, 2026

Path traversal in JeeSite 5.15.1 and earlier allows remote authenticated users to write files outside the upload directory. The upload controller binds fileEntityId from the request, and the service concatenates it into the storage path without sanitizing traversal segments before writing the file. File-upload permission is required; whitelisted JAR uploads to the application library directory enable code execution.

CVSS severity8.8
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in JeeSite 5.15.1 and earlier allows remote authenticated users to write files outside the upload directory. The upload controller binds fileEntityId from the request, and the service concatenates it into the storage path without sanitizing traversal segments before writing the file. File-upload permission is required; whitelisted JAR uploads to the application library directory enable code execution.

The record

CVE
CVE-2026-36762
Published
Apr 30, 2026
Updated
Apr 30, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

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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