VulnerabilityAnalyzed
CVE-2025-56236
FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature.
MEDIUM 6.1EPSS 0.21%
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.21% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- formcms/formcms
- Source
- cve@mitre.org
References
- https://github.com/FormCms/FormCms/issues/27Exploit, Issue Tracking
- https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.mdThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.