---
id: CVE-2026-102588
title: A flaw was found in Moodle
summary: >-
  A flaw was found in Moodle. The XML grade import feature lacks proper
  Cross-Site Request Forgery (CSRF) token validation. By tricking an
  authenticated user with grade management permissions into visiting a malicious
  webpage, an attacker …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'
cwe:
  - CWE-346
vendor: moodle
product: moodle
affected:
  - moodle < 4.5.13
  - 'moodle >= 5.0.0, < 5.0.9'
  - 'moodle >= 5.1.0, < 5.1.6'
  - 'moodle >= 5.2.0, < 5.2.2'
patched:
  - moodle 5.2.2
published: '2026-09-30'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T15:51:47.490'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102588'
references:
  - url: >-
      http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-84545
    label: patrick@puiterwijk.org
  - url: 'https://access.redhat.com/security/cve/CVE-2026-102588'
    label: patrick@puiterwijk.org
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2543643'
    label: patrick@puiterwijk.org
  - url: 'https://moodle.org/mod/forum/discuss.php?d=482507'
    label: patrick@puiterwijk.org
tags:
  - nvd
  - cve.org
epss: 0.00198
epssPercentile: 0.09509
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-30T13:56:19.288426Z'
ingestedAt: '2026-09-30T09:00:29.907Z'
---

## Overview

A flaw was found in Moodle. The XML grade import feature lacks proper Cross-Site Request Forgery (CSRF) token validation. By tricking an authenticated user with grade management permissions into visiting a malicious webpage, an attacker can trigger unauthorized requests on the victim's behalf. This flaw allows a remote attacker to set or overwrite student grades without authorization.

## Affected

- `moodle < 4.5.13`
- `moodle >= 5.0.0, < 5.0.9`
- `moodle >= 5.1.0, < 5.1.6`
- `moodle >= 5.2.0, < 5.2.2`

## Remediation

Upgrade past the affected range:

- `moodle 5.2.2`