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CVE-2026-18311

Quick assessment

Affected
Readwise Reader
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Android 版 Readwise Reader 存在跨站脚本（XSS）漏洞，原因是其处理导入文档元数据时缺少 HTML 过滤机制。攻击者可以控制作者元标记等字段，并通过 innerHTML 将其插入 WebView，从而在同步设备上执行存储型 XSS 攻击，当用户打开包含恶意内容的文档时触发。

AI Predicted 7.5 Difficulty: Easy EPSS 0.16% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
Readwise Reader 8.7.2≤ 8.10.1 affected
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I. Basic Information for CVE-2026-18311

Vulnerability Information
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Vulnerability Title
CVE-2026-18311
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Readwise Reader 8.7.2 ~ 8.10.1 -

II. Public POCs for CVE-2026-18311

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III. Intelligence Information for CVE-2026-18311

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Vendor Advisories for CVE-2026-18311 (1)

Same Patch Batch · Readwise · 2026-09-25 · 3 CVEs total

CVE-2026-18320 CVE-2026-18320
CVE-2026-18312 CVE-2026-18312

IV. Related Vulnerabilities

Same product: Reader
Same vendor: Readwise

V. Comments for CVE-2026-18311

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