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moodle/moodle 5.1.1: known vulnerabilities

Known vulnerabilities affecting moodle/moodle 5.1.1: 2. Compare the fixes below with your installed release.

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Vulnerabilities: 2

  1. CVE-2026-26047

    Medium · CVSS 6.5EPSS 0.51%Fix available

    Moodle: moodle: uncontrolled resource consumption in tex formula editor leading to denial of service

    A denial-of-service vulnerability was identified in Moodle’s TeX formula editor. When rendering TeX content using mimetex, insufficient execution time limits could allow specially crafted formulas to consume excessive server resources. An authenticated user could abuse this behavior to degrade performance or cause service interruption.

    • Update to 5.1.2
    Published Updated
  2. CVE-2026-26045

    High · CVSS 7.2EPSS 0.64%Fix available

    Moodle: moodle: improper validation in file restore functionality leading to remote code execution

    A flaw was identified in Moodle’s backup restore functionality where specially crafted backup files were not properly validated during processing. If a malicious backup file is restored, it could lead to unintended execution of server-side code. Since restore capabilities are typically available to privileged users, exploitation requires authenticated access. Successful exploitation could result in full compromise of the Moodle server.

    • Update to 5.1.2
    Published Updated

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