---
id: "CVE-2026-113608"
kind: "vulnerability"
aliases: ["CVE-2026-113608"]
title: "Moodle Configurable Reports block: SQL injection lets low-privileged users read database tables"
severity: "medium"
cvss: 6.0
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["lms", "moodle", "package", "php", "self-hosted"]
not_affected_if: ["block-not-installed", "no-filter-var-placeholder", "version-5.3.1-or-later"]
published_at: "2026-10-20T16:17:11+00:00"
first_seen_at: "2026-10-23T21:57:20+00:00"
updated_at: "2026-10-25T04:05:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113608", "first_seen_at": "2026-10-23T21:57:20+00:00"}]
---

# Moodle Configurable Reports block: SQL injection lets low-privileged users read database tables

The Configurable Reports block for Moodle before 5.3.1 has an SQL injection flaw in report_sql::prepare_sql() reached through the filter_var parameter of viewreport.php. A low-privileged user who can view a report using the %%FILTER_VAR%% placeholder can inject subqueries or UNION SELECT to read arbitrary database tables, including user password hashes.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of the block in Moodle under Site administration > Plugins > Plugins overview, or read `version.php` in the `blocks/configurablereports` directory.
- Look for reports that use the `%%FILTER_VAR%%` placeholder in their SQL.

## Fix

- Update moodle-block_configurablereports to `5.3.1` or later.

## Timeline

- 2026-10-23T21:57:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-113608

## From the sources

Configurable Reports block for Moodle (moodle-block_configurablereports) before 5.3.1 contains an sql injection vulnerability in report_sql::prepare_sql() via the filter_var request parameter of viewreport.php. Low-privileged users permitted to view reports using the %%FILTER_VAR%% placeholder can inject subqueries or UNION SELECT to read arbitrary database tables, including user password hashes.

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