Stored Cross-Site Scripting in CMS Made Simple by CMS Made Simple, Inc.
CVE-2020-37238

5.1MEDIUM

Key Information:

Vendor

Cmsmadesimple

Status
Cms Made Simple
Vendor
CVE Published:
16 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37238?

CMS Made Simple 2.2.15 is susceptible to a stored cross-site scripting vulnerability. Authenticated users with Content Manager privileges can upload SVG files containing malicious scripts. Once these SVG files are uploaded, the embedded JavaScript executes when other authenticated users access the files, leading to potential cookie theft and session hijacking. It is crucial for users and administrators to apply security patches and restrict file upload functionalities to prevent exploitation.

Affected Version(s)

CMS Made Simple 2.2.15

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37238 - Proof of Concept

References

https://www.exploit-db.com/exploits/49199
exploit
https://www.cmsmadesimple.org/
product
https://www.cmsmadesimple.org/downloads
product

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eshan Singh
.