CVE-2026-2666: mingSoft MCMS does not properly restrict file uploads

February 18, 2026 (updated February 19, 2026)

A flaw has been found in mingSoft MCMS 6.1.1. The affected element is an unknown function of the file /ms/file/uploadTemplate.do of the component Template Archive Handler. Executing a manipulation of the argument File can lead to unrestricted upload. The attack can be launched remotely. The exploit has been published and may be used.

References

github.com/advisories/GHSA-r9wp-qq53-qvjx
github.com/chujianxin0101/vuln/issues/11
github.com/ming-soft/MCMS
nvd.nist.gov/vuln/detail/CVE-2026-2666
vuldb.com/?ctiid.346463
vuldb.com/?id.346463
vuldb.com/?submit.753243

Code Behaviors & Features

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