CVE-2026-36760

CRITICAL

JeeSite 5.15.1 - Authenticated Path Traversal and Arbitrary File Write via /a/file/upload fileMd5 Parameter

Title source: llm

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 (2)

Core 2

Core References

https://github.com/thinkgem/jeesite

https://github.com/thinkgem/jeesite/issues/530

Scores

CVSS v3 9.6

EPSS 0.0038

EPSS Percentile 30.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-22

Status published

Published Apr 30, 2026

Tracked Since Apr 30, 2026