CVE-2026-5261 Details
Description
A vulnerability was identified in Shandong Hoteam InforCenter PLM up to 8.3.8. The impacted element is the function uploadFileToIIS of the file /Base/BaseHandler.ashx. The manipulation of the argument File leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
A critical vulnerability exists in Shandong Hoteam InforCenter PLM versions prior to 8.3.8. The issue arises in the uploadFileToIIS function within the /Base/BaseHandler.ashx file, where improper file extension validation allows for unrestricted file uploads. This vulnerability can be exploited remotely, without authentication, by sending a crafted multipart/form-data request to upload a malicious .aspx file containing a C# payload. Successful exploitation enables the execution of arbitrary system commands under the IIS process, potentially compromising the entire PLM server and exposing sensitive intellectual property and R&D data.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 1, 2026CISA-ADP
Assessed Apr 3, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://my.feishu.cn/docx/ToGkdd5jwokb4PxEMkHcKrfXn3b?from=from_copylink | [email protected] | ExploitTechnical Description |
| https://vuldb.com/submit/780725 | [email protected] | Technical Description |
| https://vuldb.com/vuln/354450 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/vuln/354450/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
| CWE-434 | Unrestricted Upload of File with Dangerous Type | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Shandong Hoteam InforCenter PLM | All versions |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Apr 1, 2026 | New CVE Received | [email protected] |