CVE-2023-26149: Quill-Mention Quill Mention

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Versions of the package quill-mention before 4.0.0 are vulnerable to Cross-site Scripting (XSS) due to improper user-input sanitization, via the renderList function. **Note:** If the mentions list is sourced from unsafe (user-sourced) data, this might allow an injection attack when a Quill user hits @.

Affected products

• Quill-Mention Quill Mention: before 4.0.0 (fixed in 4.0.0)

Published 2023-09-28. Last modified 2026-06-17.