CVE-2020-37238 MEDIUM

CVE-2020-37238: CMS Made Simple 2.2.15 Stored XSS via SVG File Upload

Vendor Cmsmadesimple
Product CMS Made Simple
Weakness CWE-79 · XSS
Published May 16, 2026
Last update May 24, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

CMS Made Simple 2.2.15 contains a stored cross-site scripting vulnerability that allows authenticated users with Content Manager access to inject malicious scripts through SVG file uploads. Attackers can upload SVG files containing embedded JavaScript to the file manager, which executes when other authenticated users access the uploaded file, enabling cookie theft and session hijacking.

Key dates

02Disclosure timeline

May 16, 2026 CVE published
May 24, 2026 Record updated

Related vulnerabilities

04Related CVE