CVE-2026-36760

Authenticated File Upload Path Traversal Allowing Arbitrary File Creation in JeeSite 5.15.1

Published Apr 30, 2026 CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Description
An issue in the fileMd5 parameter in the /a/file/upload endpoint of JeeSite v5.15.1 allows authenticated attackers with file upload permissions to execute a path traversal and write arbitrary files with whitelisted suffixes to arbitrary filesystem locations while chunked upload is enabled.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Authenticated File Upload Path Traversal Allowing Arbitrary File Creation in JeeSite 5.15.1
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Thinkgem
Thinkgem jeesite
Vendors & Products Thinkgem
Thinkgem jeesite
Type Values Removed Values Added
Weaknesses CWE-22
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N'}

Type Values Removed Values Added
Description An issue in the fileMd5 parameter in the /a/file/upload endpoint of JeeSite v5.15.1 allows authenticated attackers with file upload permissions to execute a path traversal and write arbitrary files with whitelisted suffixes to arbitrary filesystem locations while chunked upload is enabled.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Apr 30, 2026, 5:50 PM
Reserved
Apr 6, 2026, 12:00 AM
Status
Deferred
Published
Apr 30, 2026, 5:16 PM
Modified
Jun 17, 2026, 10:41 AM