CVE-2026-18320
Readwise Reader for Android uses a sanitize-html configuration that permits all attributes on SVG and PATH elements due to a wildcard attribute rule. This configuration fails to remove script-capable attributes such as event handlers (e.g., 'onload', 'onerror'). An attacker could supply a document containing malicious SVG content that survives sanitization and executes script wher rendered in the Reader WebView, resulting in client-side cross-site scripting (XSS).
- Published Sep 25, 2026
- CVSS 6.1 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
Affected software
In the news
- ⚡ Weekly Recap: $387M Crypto Hack, Citrix Exploits, AI Agents Go Off-Script, and More Threats The Hacker News ·
- Readwise Reader for Android, version 8.7.2, contains multiple XSS vulnerabilities CERT Coordination Center ·