High severity · published Oct 12, 2026
CVE-2026-109186
jshERP through 3.6 Mass Assignment via PUT /user/update
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
jshERP through 3.6 contains a mass assignment vulnerability in the UserController update handler that allows authenticated users to overwrite protected fields including tenant_id and password. Attackers can send a crafted PUT /user/update body to switch into another tenant on next login or overwrite other users' password hashes for account takeover.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JS
jshERP · jishenghua
through 3.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109186
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109186
exploit
https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/jshERP/poc_identity_privilege_write.py
technical-description
https://github.com/jishenghua/jshERP/blob/8f28e7c2fe54d54de3621a414f5df1833dc5a55f/jshERP-boot/src/main/java/com/jsh/erp/controller/UserController.java#L97-L103
technical-description
https://github.com/jishenghua/jshERP/blob/8f28e7c2fe54d54de3621a414f5df1833dc5a55f/jshERP-boot/src/main/java/com/jsh/erp/service/UserService.java#L176-L192
third-party-advisory
https://www.vulncheck.com/advisories/jsherp-through-3.6-mass-assignment-via-put-user-update
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