CVE-2020-37238
MEDIUM EPSS 15.3%
Published May 16, 20261mo ago · Modified Jun 17, 20261w ago
5.1 CVSS 4.0
Published May 16, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction P
Scope X
Threat Intelligence
EPSS Exploit Probability
15.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-79 Cross-site Scripting Injection
References 4
- cmsmadesimple.org https://www.cmsmadesimple.org/
- cmsmadesimple.org https://www.cmsmadesimple.org/downloads
- exploit-db.com https://www.exploit-db.com/exploits/49199
- vulncheck.com https://www.vulncheck.com/advisories/cms-made-simple-stored-xss-via-svg-file-upload
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.