CVE-2026-31272

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.1.2"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "mushroom", "vendor": "wuweiit"}], "analysis": {"en": {"generated_at": "2026-04-14T21:31:45.013086+00:00", "value": {"mitigation_remediation": ["Upgrade MRCMS to a version that resolves the access\u2011control issue.", "Restrict network access to the UserController endpoint with firewall rules or reverse\u2011proxy authentication if an immediate upgrade is not possible.", "Verify and remove any unauthorized super\u2011administrator accounts that may have been created."], "summary": {"action": "Patch Immediately", "impact": "Privilege Escalation"}, "threat_synthesis": {"affected_systems": "The affected product is MRCMS version 3.1.2. No other versions are listed as impacted by this flaw.", "description_and_impact": "MRCMS 3.1.2 contains an access\u2011control flaw in the UserController's save() method, which lacks proper authentication checks. An attacker able to reach the endpoint can create a new user account with super\u2011administrator privileges without providing credentials, granting full administrative control over the application. This vulnerability falls under the Access Control Weakness (CWE\u2011284) and can result in unauthorized data modification, denial of service, and disclosure of sensitive information.", "risk_and_exploitability": "The CVSS base score of 9.8 marks this as a critical risk. The EPSS score is below 1%, indicating that large\u2011scale exploitation is currently unlikely, and the vulnerability is not listed in the CISA KEV catalog. The weakness can be exploited remotely via an unauthenticated HTTP request to the UserController endpoint, allowing anyone with network access to the application to create super\u2011administrator accounts."}}}}, "created": "2026-04-08T19:50:22.684058+00:00", "title": "Super Administrator Creation Without Authentication in MRCMS 3.1.2", "updated": "2026-04-15T16:30:09.727377+00:00", "vendors": ["wuweiit", "wuweiit$PRODUCT$mushroom"]}