Cross-site Scripting via uploaded assets
Impact
HTML files crafted to look like images may be uploaded regardless of mime validation. This is only applicable on front-end forms using the "Forms" feature containing an assets field, or within the control panel which requires authentication.
Patches
It has been patched on 3.4.15 and 4.36.0.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | statamic/cms | < 3.4.15, >= 4.0.0, < 4.36.0 | 3.4.15, 4.36.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:H- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
statamic/cms- Disclosed
- 22.11.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8jjh-j3c2-cjcv - CC BY 4.0
Vulnerability history: statamic/cms
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 44
- First → latest
- 03.2022 08.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 15
- Medium 25
- Low 3
Disclosures per year
- 2022: 2
- 2023: 4
- 2024: 3
- 2025: 1
- 2026: 34
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Cross-site Scripting via uploaded assets this entry
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