CVE-2025-26530

HIGH
2025-02-24 [email protected]
8.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 28, 2026 - 18:28 vuln.today
Patch Released
Mar 28, 2026 - 18:28 nvd
Patch available
CVE Published
Feb 24, 2025 - 20:15 nvd
HIGH 8.3

Tags

XSS Moodle

Description

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

Analysis

The question bank filter required additional sanitizing to prevent a reflected XSS risk. Rated high severity (CVSS 8.3), this vulnerability is remotely exploitable, no authentication required. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The question bank filter required additional sanitizing to prevent a reflected XSS risk. Affected products include: Moodle.

Affected Products

Moodle.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

42
Low Medium High Critical
KEV: 0
EPSS: +0.3
CVSS: +42
POC: 0

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CVE-2025-26530 vulnerability details – vuln.today
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