CVE-2026-102580

LOW 2.2

Moodle: arbitrary class instantiation via report builder audience classname

CVSS Score

2.2

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in Moodle. An authenticated attacker can supply an improperly validated audience class name to the Report Builder component, allowing arbitrary class instantiation. This vulnerability enables the unauthorized creation of internal program objects, which may result in unexpected application behavior.

CWE	CWE-470
Published	Sep 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

NVD ↗ CVE.org ↗ EPSS Data ↗

git.moodle.org: http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-89078 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-102580 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2543635 moodle.org: https://moodle.org/mod/forum/discuss.php?d=482498

Credits

Upstream acknowledges Paul Holden as the original reporter.