CVE-2026-1061
Published: 17 January 2026
Summary
CVE-2026-1061 is a medium-severity Improper Access Control (CWE-284) vulnerability in Xiweicheng Teamwork Management System. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Web Shell (T1505.003); ranked at the 27.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2026-1061 is an unrestricted file upload vulnerability in xiweicheng TMS versions up to 2.28.0. The issue affects the Upload function within the file src/main/java/com/lhjz/portal/controller/FileController.java, where manipulation of the filename argument enables the upload of arbitrary files. This flaw is remotely exploitable and has been assigned CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type), with a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
An attacker with low privileges, such as an authenticated user, can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, potentially enabling the upload of malicious files that could lead to further compromise depending on server configuration.
Advisories and additional details are available in the referenced sources, including a GitHub repository documenting the file upload issue in xiweicheng TMS and VulDB entries (https://github.com/bkglfpp/CVE-md/blob/main/%E5%95%86%E6%88%B7%E5%95%86%E5%9F%8E%E2%80%94%E5%95%86%E5%9F%8E%E5%BC%80%E5%8F%91tms/%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0.md, https://vuldb.com/?ctiid.341629, https://vuldb.com/?id.341629, https://vuldb.com/?submit.731240). No specific patch or mitigation steps are detailed in the initial disclosure.
The exploit is public and available for use, as noted in the vulnerability description published on 2026-01-17.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-3130
Vulnerability details
A vulnerability was detected in xiweicheng TMS up to 2.28.0. Affected by this issue is the function Upload of the file src/main/java/com/lhjz/portal/controller/FileController.java. The manipulation of the argument filename results in unrestricted upload. The attack may be performed from remote. The…
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exploit is now public and may be used.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted file upload (CWE-434) with filename manipulation directly enables deployment of arbitrary server-side code including web shells on the vulnerable application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces access restrictions on the Upload function in FileController.java to block unauthorized filename manipulation and arbitrary file writes.
Requires validation of the filename argument and uploaded file content/type to prevent unrestricted uploads of dangerous files (CWE-434).
Limits the privileges granted to authenticated users so the upload capability cannot be abused to write arbitrary files.