Cross-Site Scripting Flaw in Readwise Reader for Android by Readwise
CVE-2026-18311

6.1MEDIUM

Key Information:

Vendor

Readwise

Status
Reader
Vendor
CVE Published:
25 September 2026

What is CVE-2026-18311?

Readwise Reader for Android is susceptible to a cross-site scripting vulnerability due to insufficient HTML sanitization when processing imported document metadata. This flaw allows attacker-controlled content, such as the author meta tag, to be injected into a WebView via innerHTML. Consequently, this could enable stored XSS attacks, which may execute when a user opens the compromised document on their synced devices, posing a significant risk to users.

Affected Version(s)

Reader 8.7.2 <= 8.10.1

References

https://kb.cert.org/vuls/id/699627

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.