CVE-2017-20239 MEDIUM

CVE-2017-20239: MDwiki Cross-Site Scripting via Location Hash Parameter

Vendor Dynalon
Product MDwiki
Weakness CWE-79 · XSS
Published April 12, 2026
Last update May 24, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

MDwiki contains a cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript by injecting malicious code through the location hash parameter. Attackers can craft URLs with JavaScript payloads in the hash fragment that are parsed and rendered without sanitization, causing the injected scripts to execute in the victim's browser context.

Key dates

02Disclosure timeline

April 12, 2026 CVE published
May 24, 2026 Record updated