CVE-2026-26045
High · 7.2CVSS
7.2
EPSS
0.8%
Published
Feb 21, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Packagist | moodle/moodle | 0 | 4.5.9 |
| Packagist | moodle/moodle | 5.0.0-beta | 5.0.5 |
| Packagist | moodle/moodle | 5.1.0-beta | 5.1.2 |
Related vulnerabilities
- GHSA-ggxq-2mg9-8966 Moodle has a Remote Code Execution risk via file restore Same vulnerability
- GHSA-cg8j-5cr2-568q Moodle TeX formula editor is vulnerable to DoS through lack of execution time limits Also affects moodle/moodle
- CVE-2026-26047 A denial-of-service vulnerability was identified in Moodle’s TeX formula editor. Also affects moodle/moodle
- GHSA-5cx4-w4fh-fr57 Moodle Affected by Improper Restriction of Excessive Authentication Attempts Also affects moodle/moodle
- GHSA-8jrv-wx83-w3xj Moodle Inserts Sensitive Information Into Sent Data Also affects moodle/moodle
- GHSA-hcm6-q6pc-xfhm Moodle has an authorization logic flaw Also affects moodle/moodle
- GHSA-qv78-6gpp-hm68 Moodle Open Redirect vulnerability Also affects moodle/moodle
- GHSA-vwhw-vp9v-q9c9 Moodle vulnerable to Cross-site Scripting Also affects moodle/moodle