CVE-2025-15056
Quill 2.0.3 - Lack of data validation in HTML export allowing XSS
- State
- Published
- Severity
- 5.1 Medium
- Published
- Jan 13, 2026
- Updated
- Apr 20, 2026
- Reserved
- Dec 23, 2025
Description
A lack of data validation vulnerability in the HTML export feature in Quill in allows Cross-Site Scripting (XSS).
This issue affects Quill: 2.0.3.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N | Fluid Attacks |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
QuillSlab |
|
References
- https://fluidattacks.com/advisories/diomedesthird-party-advisory
- https://github.com/slab/quillproduct
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