Cross-site scripting in Readwise Reader
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18311
- 2026-10-03 Alias added: GHSA-p2jj-7m4x-3gfh
References
More Readwise vulnerabilities
- TI-2026-15069 Cross-site scripting in Readwise Reader CVSS 3.1MEDIUM 6.1
- TI-2026-15064 Cross-site scripting in Readwise Reader CVSS 3.1MEDIUM 6.1
Sources
- CVE-2026-18311 · CVE Program
- CVE-2026-18311 · NVD
- FIRST EPSS
- GHSA-p2jj-7m4x-3gfh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences