Vulnerability · CVE-2026-18320
CVE-2026-18320 is listed by VU#699627: Readwise Reader for Android, version 8.7.2, contains multiple XSS vulnerabilities.
Published Sep 25, 2026 · CERT/CC
Check if you run it
No confirmed exploitation is on record for CVE-2026-18320. EPSS is 0.16%. Act only if a listed version of CERT/CC is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Unknown—
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.16%
- Remediation
- Not established
- Affected products
- CERT/CC
CVE-2026-18320 is listed by VU#699627: Readwise Reader for Android, version 8.7.2, contains multiple XSS vulnerabilities.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-18320
Recommended remediation
No required-action text, fix commit, or clear fixed-version range is stored yet.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-18320. EPSS is 0.16%. Act only if a listed version of CERT/CC is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Sep 25, 2026 · CERT/CC Vulnerability Notes
Detected
Overview Three cross-site scripting (XSS) vulnerabilities identified in Readwise Reader for Android version 8.7.2 are disclosed. An attacker with the ability to craft malicious documents or metadata can exploit these vulnerabilities by supplying poisoned content that bypasses sanitization. Successful exploitation could allow the attacker to execute arbitrary JavaScript within the application's Web
Sources
- CERT/CC Vulnerability NotesGovernment advisoryCVE-2026-18320
Overview Three cross-site scripting (XSS) vulnerabilities identified in Readwise Reader for Android version 8.7.2 are disclosed. An attacker with the ability to craft malicious documents or metadata can exploit these vulnerabilities by supplying poisoned content that bypasses san
kb.cert.org - CVE.orgVulnerability recordCVE-2026-18320
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-18320
30-day exploitation probability 0.2%
first.org
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.