CVE-2025-56236
MEDIUM EPSS 9.8%
Published Aug 28, 202510mo ago · Modified Jun 17, 20261w ago
6.1 CVSS 3.1
Published Aug 28, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None
Threat Intelligence
EPSS Exploit Probability
9.8% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-79 Cross-site Scripting Injection
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| formcms | formcms | * | ≥0.5.5 – <0.5.7 |
References 2
- github.com https://github.com/FormCms/FormCms/issues/27
- github.com https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.md
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.