Changjetong Information Technology T+: attackers can run their own code
OFFICIAL NAME: Changjetong T+ <= 16.x GetStoreWarehouseByStore Deserialization RCE
DO THIS FIRSTFind out if you use it. If you do, apply the vendor's fix. Not sure if you use it? Send this page to your IT provider or security lead and ask.
TECHNICAL SUMMARY 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…
WHY THIS VERDICT Attack attempts are confirmed, with no confirmed exploitation yet.
WHY IT RANKS HERE The first report is 20 days old.
- HIGHEST CONFIRMED RUNG
- TRIED
- CISA KEV
- NOT YET
- EXPLOIT CODE
- PROOF OF CONCEPT
How far has it climbed?
01 TALK
□ NO EVIDENCE YETNEWEST EVIDENCE NONE YETNo evidence yet.
SRC: NONE YET02 EXPOSED
□ NOT TRACKED YETNO SOURCE FOR THIS STEP YETWe have no source that counts exposed systems yet. Internet scan data needs a partnership we do not have. No evidence here does not mean nothing is exposed.
03 TRIED
■ CONFIRMEDNEWEST EVIDENCE · 1 SOURCEAttack attempts on CVE-2023-7334 seen by honeypots (Shadowserver via CIRCL).
04 EXPLOITED
□ NO EVIDENCE YETNEWEST EVIDENCE NONE YETNo evidence yet.
SRC: NONE YET05 DAMAGE
□ NOT TRACKED YETNO SOURCE FOR THIS STEP YETBreach notices and filings rarely name the flaw that was used, so we cannot link them to this event yet. No evidence here does not mean no harm.
When each thing happened
- DISCLOSED
- EXPLOIT CODE PUBLICDATE UNKNOWN
- FIRST ATTACK REPORT
- CISA KEV LISTINGNOT YET
- US FEDERAL DEADLINENOT YET
Questions to ask this week
- Do we run Changjetong Information Technology T+? If yes, is it patched or cut off from the internet?
- Who owns fixing it, and by what date?
- Have we checked for signs of attack since the first report, not just since the patch?
How it unfolded
- JAN 15, 2026CISA Vulnrichment notes a public proof of concept for CVE-2023-7334
- Attack activity. OCT 21, 2026Attack attempts on CVE-2023-7334 seen by honeypots (Shadowserver via CIRCL)