CVE-2020-37238

CMS Made Simple 2.2.15 Stored XSS via SVG File Upload

Published May 16, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title CMS Made Simple 2.2.15 Stored XSS via SVG File Upload
First Time appeared Cmsmadesimple
Cmsmadesimple cms Made Simple
Weaknesses CWE-79
CPEs cpe:2.3:a:cmsmadesimple:cms_made_simple:2.2.17:*:*:*:*:*:*:*
cpe:2.3:a:cmsmadesimple:cms_made_simple:2.2.18:*:*:*:*:*:*:*
cpe:2.3:a:cmsmadesimple:cms_made_simple:2.2.19:*:*:*:*:*:*:*
cpe:2.3:a:cmsmadesimple:cms_made_simple:2.2.20:*:*:*:*:*:*:*
cpe:2.3:a:cmsmadesimple:cms_made_simple:2.2.21:*:*:*:*:*:*:*
Vendors & Products Cmsmadesimple
Cmsmadesimple cms Made Simple
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
May 24, 2026, 1:36 AM
Reserved
May 15, 2026, 2:49 PM
Status
Deferred
Published
May 16, 2026, 4:16 PM
Modified
Sep 29, 2026, 10:10 AM