CVE-2026-18311
Medium
Description
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.
SeverityMedium
CVSS6.1
Exploit probability12. percentile0.2%
ProductReader
PublishedSep 25, 2026
First seenSep 25, 2026
Weakness typeCWE-79Cross-site scripting (XSS)CWE-116CWE-116
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Readwise Reader | 8.7.2 ≤ v ≤ 8.10.1 | — |
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