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CVE-2025-26530 — Vulnerability in moodle/moodle — CVE Details

HIGH

Moodle allows reflected XSS via question bank filter

Published February 24, 2025Updated August 12, 2025Source: osv

Summary

The question bank filter required additional sanitizing to prevent a reflected XSS risk.

Advisory Timeline

  • First published February 24, 2025 (595 days ago).
  • Last revised August 12, 2025 — 168 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update moodle/moodle to 4.3.10 or later
composer require "moodle/moodle:^4.3.10"
Composer
Update moodle/moodle to 4.4.6 or later
composer require "moodle/moodle:^4.4.6"
Composer
Update moodle/moodle to 4.5.2 or later
composer require "moodle/moodle:^4.5.2"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (3)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
moodle/moodle
packagist
v4.3.0, v4.3.0-beta, v4.3.0-rc1, v4.3.0-rc2 (+9 more)4.3.10
moodle/moodle
packagist
v4.4.0, v4.4.0-beta, v4.4.0-rc1, v4.4.0-rc2 (+5 more)4.4.6
moodle/moodle
packagist
v4.5.0, v4.5.0-beta, v4.5.0-rc1, v4.5.0-rc2 (+1 more)4.5.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.3 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2025-26530?
Moodle allows reflected XSS via question bank filter This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.3/10).
How do I check if my project is affected by CVE-2025-26530?
CVE-2025-26530 affects moodle/moodle. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-26530 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.3

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-4w32-c9g7-27qx
BIT-moodle-2025-26530

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