CVE-2026-7727: Shandong Hoteam PDM SQLi Vulnerability

CVE-2026-7727 Overview

CVE-2026-7727 is a SQL injection vulnerability in Shandong Hoteam Software PDM Product Data Management System through version 8.3.9. The flaw resides in the GetQueryMachineGridOnePageData function exposed via /Base/BaseService.asmx/DataService. Attackers manipulate the SortOrder argument to inject arbitrary SQL into backend queries. The vulnerability is exploitable remotely without authentication or user interaction. The vendor addressed the issue in version 8.3.10. The weakness is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component).

Critical Impact
Remote, unauthenticated attackers can inject SQL through the SortOrder parameter, exposing or modifying PDM data managed by the affected service.

Affected Products

Shandong Hoteam Software PDM Product Data Management System versions up to and including 8.3.9
Endpoint /Base/BaseService.asmx/DataService invoking GetQueryMachineGridOnePageData
Fixed release: PDM Product Data Management System 8.3.10

Discovery Timeline

2026-05-04 - CVE-2026-7727 published to NVD
2026-05-04 - Last updated in NVD database

Technical Details for CVE-2026-7727

Vulnerability Analysis

The vulnerability is a server-side SQL injection in the PDM web service layer. The GetQueryMachineGridOnePageData method accepts a SortOrder parameter that the application concatenates into a database query without proper sanitization or parameterization. Because the /Base/BaseService.asmx/DataService endpoint is reachable without authentication, any network-positioned attacker can submit crafted SOAP or HTTP requests. Successful injection allows reading, altering, or deleting data accessible to the database account used by the PDM service.

Root Cause

The root cause is improper neutralization of input passed to a downstream SQL interpreter, consistent with CWE-74. The SortOrder argument is incorporated into a dynamically built ORDER BY clause. ORDER BY positions cannot be parameterized through standard prepared statements, so developers commonly fall back to string concatenation. Without an allow-list of valid sort columns and directions, attacker-controlled SQL fragments execute with the privileges of the application's database user.

Attack Vector

Exploitation requires only network access to the PDM web service. The attacker issues a request to /Base/BaseService.asmx/DataService invoking GetQueryMachineGridOnePageData and supplies a malicious SortOrder value containing SQL syntax such as stacked queries, UNION clauses, or time-based blind payloads. No credentials or user interaction are required. The EPSS score is 0.03% (percentile 8.651), indicating low observed exploitation activity at publication, though the unauthenticated network reachability lowers the technical bar for opportunistic abuse.

No verified public proof-of-concept code is referenced in the enriched data, so exploitation specifics are described in prose rather than illustrated with synthetic payloads. See the VulDB Vulnerability #360902 record for the disclosure submission.

Detection Methods for CVE-2026-7727

Indicators of Compromise

Inbound HTTP or SOAP requests to /Base/BaseService.asmx/DataService containing SQL meta-characters such as single quotes, --, ;, UNION, WAITFOR, or SLEEP in the SortOrder parameter.
Database error messages, unusually long response times, or repeated requests differing only in the SortOrder value, indicating blind SQL injection probing.
Outbound DNS or HTTP requests originating from the PDM database host that correlate with xp_cmdshell or out-of-band exfiltration patterns.

Detection Strategies

Inspect web server and IIS logs for requests to BaseService.asmx/DataService and parse the SortOrder field against a strict allow-list of column names and ASC/DESC tokens.
Deploy WAF or IDS signatures that flag SQL injection patterns specifically targeting .asmx endpoints used by the PDM application.
Enable database-side auditing on the PDM schema to capture ad-hoc queries that deviate from the application's normal parameterized statement profile.

Monitoring Recommendations

Alert on PDM service accounts executing queries against system tables such as sys.databases, INFORMATION_SCHEMA.TABLES, or sys.syslogins.
Track request rates to the affected endpoint and correlate spikes with HTTP 500 responses, a common artifact of injection probing.
Forward web, application, and database logs to a centralized analytics platform for cross-source correlation and retention.

How to Mitigate CVE-2026-7727

Immediate Actions Required

Upgrade Shandong Hoteam PDM Product Data Management System to version 8.3.10 or later, which contains the vendor fix.
Restrict network access to /Base/BaseService.asmx/DataService so it is reachable only from trusted internal subnets until patching completes.
Rotate credentials for the database account used by the PDM service if exploitation is suspected, and review audit logs for unauthorized queries.

Patch Information

The vendor resolved CVE-2026-7727 in PDM Product Data Management System 8.3.10. Refer to the Hoteamsoft Product Overview and the Feishu Wiki Documentation for upgrade guidance, and validate the build version after deployment.

Workarounds

Place the PDM web service behind a WAF with rules that block SQL meta-characters in the SortOrder parameter.
Constrain the database account used by the PDM service to least-privilege roles, denying xp_cmdshell, schema modification, and access to system catalogs.
If feasible, disable or firewall the GetQueryMachineGridOnePageData operation until the upgrade to 8.3.10 is completed.

bash

# Example IIS URL Rewrite rule fragment to block SQL meta-characters in SortOrder
# Place inside <system.webServer><rewrite><rules> in web.config
<rule name="Block-SortOrder-SQLi" stopProcessing="true">
  <match url=".*BaseService\.asmx/DataService.*" />
  <conditions>
    <add input="{QUERY_STRING}" pattern="(?i)SortOrder=.*(['\";]|--|/\*|union|select|sleep|waitfor)" />
  </conditions>
  <action type="CustomResponse" statusCode="403" statusReason="Forbidden" />
</rule>