{"id":"CVE-2026-18311","state":"PUBLISHED","title":"CVE-2026-18311","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.","publishedAt":"2026-09-25T16:27:54.187Z","updatedAt":"2026-09-25T16:58:34.254Z","severity":{"score":6.1,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"certcc","products":["Readwise Reader"],"affected":[{"vendor":"Readwise","product":"Reader","versions":[{"version":"8.7.2","status":"affected","lessThanOrEqual":"8.10.1","versionType":"custom"}]}],"references":["https://kb.cert.org/vuls/id/699627"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/18xxx/CVE-2026-18311.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18311","state":"PUBLISHED","datePublished":"2026-09-25T16:27:54.187Z","dateUpdated":"2026-09-25T16:58:34.254Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-07-29T17:36:03.706Z"},"containers":{"cna":{"title":"CVE-2026-18311","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Readwise","product":"Reader","versions":[{"version":"8.7.2","status":"affected","lessThanOrEqual":"8.10.1","versionType":"custom"}]}],"references":[{"url":"https://kb.cert.org/vuls/id/699627"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-79"}]},{"descriptions":[{"lang":"en","description":"CWE-116"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-09-25T16:27:54.187Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.49","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-18311"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.1,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-25T16:58:10.634438Z","id":"CVE-2026-18311","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","type":"CWE","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-25T16:58:34.254Z"}}]}}}