Mass Assignment Vulnerability in jshERP by jishenghua
CVE-2026-109186

8.7HIGH

Key Information:

Vendor

Jishenghua

Status
Jsherp
Vendor
CVE Published:
12 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-109186?

jshERP versions up to 3.6 contain a mass assignment vulnerability in the UserController's update handler. This flaw allows authenticated users to manipulate protected fields such as tenant_id and password. By crafting a specific PUT request to /user/update, attackers can potentially assume control of another user's tenant or overwrite password hashes, creating a pathway for unauthorized access and account takeovers. Proper validation and protection mechanisms should be implemented to mitigate this risk and safeguard user data.

Affected Version(s)

jshERP 0 <= 3.6

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-109186 - Proof of Concept

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1...
exploit
https://github.com/jishenghua/jshERP/blob/8f28e7c2fe54d54...
technical-description
https://github.com/jishenghua/jshERP/blob/8f28e7c2fe54d54...
technical-description

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yaqi Chao
.