code16/sharp has a stored XSS via data-html-content Sanitizer Bypass
Impact
The vulnerability allows an attacker to bypass the HTML sanitizer by using the data-html-content attribute in the content of a SharpEditorFormField.
Patches
The field must now explicitly configure SharpFormEditorField::RAW_HTML in the toolbar to keep this behavior. When using the RAW_HTML button, the application using code16/sharp must sanitize manually the content coming from the field.
Vulnerability has been patched in version 9.22.5.
Workarounds
Sanitize every contents of editors manually (e.g. using Symfony/HtmlSanitizer)
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | code16/sharp | < 9.22.5 | 9.22.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
code16/sharp- Disclosed
- 25.09.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vj3q-vp3g-j9c8 - CC BY 4.0
Vulnerability history: code16/sharp
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
- 8
- First → latest
- 10.2025 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
- Medium 3
Disclosures per year
- 2025: 2
- 2026: 6
-
code16/sharp has a stored XSS via data-html-content Sanitizer Bypass this entry
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