CVE-2025-56236

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-56236
FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature. Authenticated users can upload .html files containing malicious JavaScript, which are accessible via a public URL. When a privileged user accesses the file, the script executes in their browser context.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/FormCms/FormCms/issues/27 Exploit Issue Tracking
https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.md Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:formcms:formcms:*:*:*:*:*:*:*:*
History

09 Sep 2025, 18:41

Type Values Removed Values Added
References () https://github.com/FormCms/FormCms/issues/27 - () https://github.com/FormCms/FormCms/issues/27 - Exploit, Issue Tracking
References () https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.md - () https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.md - Third Party Advisory
CPE cpe:2.3:a:formcms:formcms:*:*:*:*:*:*:*:*
First Time Formcms
Formcms formcms

28 Aug 2025, 20:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.1
CWE CWE-79

28 Aug 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-08-28 15:16

Updated : 2025-09-09 18:41

NVD link : CVE-2025-56236

Mitre link : CVE-2025-56236

CVE.ORG link : CVE-2025-56236

JSON object : View

Products Affected

formcms

  • formcms
CWE
CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')