CVE-2026-18311
Readwise Reader for Android contains a cross-site scripting vulnerability due to missing HTML sanitization in its processing of imported document metadata. Attacker-controlled fields such as the author meta tag are inserted into a WebView via innerHTML, enabling stored XSS that executes on synced devices when the malicious document is opened.
- 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 ·