Moodle has a Remote Code Execution risk via file restore
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-26045US | — | — | ||
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 res… | ||||
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references
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-26045WEB
- https://bugzilla.redhat.com/show_bug.cgi?id=2440901WEB
- https://github.com/moodle/moodlePACKAGE
- https://github.com/moodle/moodle/commit/566054ba11f609a6d48d09b32e85d435d49927daWEB
- https://moodle.org/mod/forum/discuss.php?d=473314WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-26045ADVISORY
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