CVE-2026-18312
Readwise Reader for Android constructs URLs in its WebView using attacker-controlled metadata without proper encoding or escaping. The application interpolates untrusted values directly into URL strings and inserts them into the DOM via innerHTML. Because the interpolation occurs without HTML or JavaScript context encoding, a crafted metadata value can break out of the intended URL structure and inject script content. An attacker could supply a document containing malicious metadata that, once synchronized to an Android device and rendered in the Reader WebView, results in execution of injected script content, enabling stored cross-site scripting (XSS)
CVE-2026-18312
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-18312
Reader
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Readwise",
"product": "Reader",
"versions": [
{
"status": "affected",
"version": "8.7.2",
"versionType": "custom",
"lessThanOrEqual": "8.10.1"
}
]
}
]- Related CVEs
- CVE-2026-18312
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #2190 · Revision 1
- Added to Heist Feed
- Publisher date